56908159157 has 2 divisors, whose sum is σ = 56908159158. Its totient is φ = 56908159156.

The previous prime is 56908159109. The next prime is 56908159289. The reversal of 56908159157 is 75195180965.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 52462070116 + 4446089041 = 229046^2 + 66679^2 .

It is a cyclic number.

It is not a de Polignac number, because 56908159157 - 2³² = 52613191861 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (56908159457) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 28454079578 + 28454079579.

It is an arithmetic number, because the mean of its divisors is an integer number (28454079579).

Almost surely, 2^56908159157 is an apocalyptic number.

It is an amenable number.

56908159157 is a deficient number, since it is larger than the sum of its proper divisors (1).

56908159157 is an equidigital number, since it uses as much as digits as its factorization.

56908159157 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 3402000, while the sum is 56.

The spelling of 56908159157 in words is "fifty-six billion, nine hundred eight million, one hundred fifty-nine thousand, one hundred fifty-seven".