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253070055 = 3357267571
BaseRepresentation
bin11110001010110…
…00101011100111
3122122012021212000
433011120223213
51004241220210
641040100343
76162026400
oct1705305347
9578167760
10253070055
1111a940307
12709046b3
1340578bc4
14258789a7
151733dac0
hexf158ae7

253070055 has 96 divisors (see below), whose sum is σ = 532097280. Its totient is φ = 113762880.

The previous prime is 253070053. The next prime is 253070119. The reversal of 253070055 is 550070352.

It is not a de Polignac number, because 253070055 - 21 = 253070053 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (253070053) by changing a digit.

It is a polite number, since it can be written in 95 ways as a sum of consecutive naturals, for example, 442920 + ... + 443490.

It is an arithmetic number, because the mean of its divisors is an integer number (5542680).

Almost surely, 2253070055 is an apocalyptic number.

253070055 is an abundant number, since it is smaller than the sum of its proper divisors (279027225).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

253070055 is a wasteful number, since it uses less digits than its factorization.

253070055 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 666 (or 653 counting only the distinct ones).

The product of its (nonzero) digits is 5250, while the sum is 27.

The square root of 253070055 is about 15908.1757282223. The cubic root of 253070055 is about 632.5287253849.

The spelling of 253070055 in words is "two hundred fifty-three million, seventy thousand, fifty-five".

Divisors: 1 3 5 7 9 15 21 27 35 45 49 63 67 105 135 147 189 201 245 315 335 441 469 571 603 735 945 1005 1323 1407 1713 1809 2205 2345 2855 3015 3283 3997 4221 5139 6615 7035 8565 9045 9849 11991 12663 15417 16415 19985 21105 25695 27979 29547 35973 38257 49245 59955 63315 77085 83937 88641 107919 114771 139895 147735 179865 191285 251811 267799 344313 419685 443205 539595 573855 755433 803397 1032939 1259055 1338995 1721565 1874593 2410191 3777165 4016985 5164695 5623779 7230573 9372965 12050955 16871337 28118895 36152865 50614011 84356685 253070055