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55253055 = 35111325759
BaseRepresentation
bin1101001011000…
…1100000111111
310211222010221110
43102301200333
5103121044210
65252133103
71240433424
oct322614077
9124863843
1055253055
1129209490
1216607193
13b5a7420
1474a3d4b
154cb6420
hex34b183f

55253055 has 32 divisors (see below), whose sum is σ = 103864320. Its totient is φ = 24727680.

The previous prime is 55253039. The next prime is 55253063. The reversal of 55253055 is 55035255.

It is not a de Polignac number, because 55253055 - 24 = 55253039 is a prime.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 10735 + ... + 15024.

It is an arithmetic number, because the mean of its divisors is an integer number (3245760).

Almost surely, 255253055 is an apocalyptic number.

55253055 is a gapful number since it is divisible by the number (55) formed by its first and last digit.

55253055 is a deficient number, since it is larger than the sum of its proper divisors (48611265).

55253055 is a wasteful number, since it uses less digits than its factorization.

55253055 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 25791.

The product of its (nonzero) digits is 18750, while the sum is 30.

The square root of 55253055 is about 7433.2398723571. The cubic root of 55253055 is about 380.8775999928.

The spelling of 55253055 in words is "fifty-five million, two hundred fifty-three thousand, fifty-five".

Divisors: 1 3 5 11 13 15 33 39 55 65 143 165 195 429 715 2145 25759 77277 128795 283349 334867 386385 850047 1004601 1416745 1674335 3683537 4250235 5023005 11050611 18417685 55253055