56129695507 has 2 divisors, whose sum is σ = 56129695508. Its totient is φ = 56129695506.

The previous prime is 56129695499. The next prime is 56129695561. The reversal of 56129695507 is 70559692165.

56129695507 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 56129695507 - 2³ = 56129695499 is a prime.

It is not a weakly prime, because it can be changed into another prime (56129695597) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 28064847753 + 28064847754.

It is an arithmetic number, because the mean of its divisors is an integer number (28064847754).

Almost surely, 2^56129695507 is an apocalyptic number.

56129695507 is a deficient number, since it is larger than the sum of its proper divisors (1).

56129695507 is an equidigital number, since it uses as much as digits as its factorization.

56129695507 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 5103000, while the sum is 55.

The spelling of 56129695507 in words is "fifty-six billion, one hundred twenty-nine million, six hundred ninety-five thousand, five hundred seven".