56601512121 has 32 divisors (see below), whose sum is σ = 99625586688. Its totient is φ = 27673770240.

The previous prime is 56601512113. The next prime is 56601512129. The reversal of 56601512121 is 12121510665.

It is an interprime number because it is at equal distance from previous prime (56601512113) and next prime (56601512129).

It is not a de Polignac number, because 56601512121 - 2³ = 56601512113 is a prime.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (56601512129) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 7202785 + ... + 7210638.

It is an arithmetic number, because the mean of its divisors is an integer number (3113299584).

Almost surely, 2^56601512121 is an apocalyptic number.

56601512121 is a gapful number since it is divisible by the number (51) formed by its first and last digit.

It is an amenable number.

56601512121 is a deficient number, since it is larger than the sum of its proper divisors (43024074567).

56601512121 is a wasteful number, since it uses less digits than its factorization.

56601512121 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 14413461.

The product of its (nonzero) digits is 3600, while the sum is 30.

The spelling of 56601512121 in words is "fifty-six billion, six hundred one million, five hundred twelve thousand, one hundred twenty-one".