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56615151055 = 513981460649
BaseRepresentation
bin110100101110100001…
…101010010111001111
312102010121101122220111
4310232201222113033
51411421434313210
642001511100451
74042655562301
oct645641522717
9172117348814
1056615151055
112201285aa41
12ab80371727
13545340a6a8
142a5110b971
1517154de88a
hexd2e86a5cf

56615151055 has 8 divisors (see below), whose sum is σ = 68426946000. Its totient is φ = 44966277696.

The previous prime is 56615151053. The next prime is 56615151059. The reversal of 56615151055 is 55015151665.

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

It is a cyclic number.

It is not a de Polignac number, because 56615151055 - 21 = 56615151053 is a prime.

It is a super-2 number, since 2×566151510552 (a number of 22 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 56615150999 and 56615151017.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (56615151053) 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, 40729630 + ... + 40731019.

It is an arithmetic number, because the mean of its divisors is an integer number (8553368250).

Almost surely, 256615151055 is an apocalyptic number.

56615151055 is a deficient number, since it is larger than the sum of its proper divisors (11811794945).

56615151055 is a wasteful number, since it uses less digits than its factorization.

56615151055 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 81460793.

The product of its (nonzero) digits is 112500, while the sum is 40.

The spelling of 56615151055 in words is "fifty-six billion, six hundred fifteen million, one hundred fifty-one thousand, fifty-five".

Divisors: 1 5 139 695 81460649 407303245 11323030211 56615151055