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55310253 = 345740343
BaseRepresentation
bin1101001011111…
…1011110101101
310212002001101220
43102333132231
5103124412003
65253253553
71241062245
oct322773655
9125061356
1055310253
1129248459
12166342b9
13b5c747b
1474bab25
154cc8353
hex34bf7ad

55310253 has 8 divisors (see below), whose sum is σ = 73910208. Its totient is φ = 36791904.

The previous prime is 55310251. The next prime is 55310261. The reversal of 55310253 is 35201355.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 55310253 - 21 = 55310251 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (55310251) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 18801 + ... + 21542.

It is an arithmetic number, because the mean of its divisors is an integer number (9238776).

Almost surely, 255310253 is an apocalyptic number.

It is an amenable number.

55310253 is a deficient number, since it is larger than the sum of its proper divisors (18599955).

55310253 is a wasteful number, since it uses less digits than its factorization.

55310253 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 40803.

The product of its (nonzero) digits is 2250, while the sum is 24.

The square root of 55310253 is about 7437.0863246301. The cubic root of 55310253 is about 381.0089829173.

The spelling of 55310253 in words is "fifty-five million, three hundred ten thousand, two hundred fifty-three".

Divisors: 1 3 457 1371 40343 121029 18436751 55310253