56129695501 has 16 divisors (see below), whose sum is σ = 62182814400. Its totient is φ = 50659728240.

The previous prime is 56129695499. The next prime is 56129695507. The reversal of 56129695501 is 10559692165.

56129695501 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 56129695501 - 2¹ = 56129695499 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (56129695507) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 33315 + ... + 336703.

It is an arithmetic number, because the mean of its divisors is an integer number (3886425900).

Almost surely, 2^56129695501 is an apocalyptic number.

It is an amenable number.

56129695501 is a deficient number, since it is larger than the sum of its proper divisors (6053118899).

56129695501 is a wasteful number, since it uses less digits than its factorization.

56129695501 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 303561 (or 303539 counting only the distinct ones).

The product of its (nonzero) digits is 729000, while the sum is 49.

The spelling of 56129695501 in words is "fifty-six billion, one hundred twenty-nine million, six hundred ninety-five thousand, five hundred one".