56664035251 has 16 divisors (see below), whose sum is σ = 57804134400. Its totient is φ = 55536062400.

The previous prime is 56664035249. The next prime is 56664035257. The reversal of 56664035251 is 15253046665.

It is a cyclic number.

It is not a de Polignac number, because 56664035251 - 2¹ = 56664035249 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 56664035198 and 56664035207.

It is not an unprimeable number, because it can be changed into a prime (56664035257) 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 15 ways as a sum of consecutive naturals, for example, 6011220 + ... + 6020638.

It is an arithmetic number, because the mean of its divisors is an integer number (3612758400).

Almost surely, 2^56664035251 is an apocalyptic number.

56664035251 is a deficient number, since it is larger than the sum of its proper divisors (1140099149).

56664035251 is a wasteful number, since it uses less digits than its factorization.

56664035251 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10050.

The product of its (nonzero) digits is 648000, while the sum is 43.

The spelling of 56664035251 in words is "fifty-six billion, six hundred sixty-four million, thirty-five thousand, two hundred fifty-one".