56031251057 has 2 divisors, whose sum is σ = 56031251058. Its totient is φ = 56031251056.

The previous prime is 56031251033. The next prime is 56031251149. The reversal of 56031251057 is 75015213065.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 37496062321 + 18535188736 = 193639^2 + 136144^2 .

It is a cyclic number.

It is not a de Polignac number, because 56031251057 - 2¹² = 56031246961 is a prime.

It is not a weakly prime, because it can be changed into another prime (56031251357) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 28015625528 + 28015625529.

It is an arithmetic number, because the mean of its divisors is an integer number (28015625529).

Almost surely, 2^56031251057 is an apocalyptic number.

It is an amenable number.

56031251057 is a deficient number, since it is larger than the sum of its proper divisors (1).

56031251057 is an equidigital number, since it uses as much as digits as its factorization.

56031251057 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 31500, while the sum is 35.

The spelling of 56031251057 in words is "fifty-six billion, thirty-one million, two hundred fifty-one thousand, fifty-seven".