56916514901 has 4 divisors (see below), whose sum is σ = 56991307404. Its totient is φ = 56841722400.

The previous prime is 56916514877. The next prime is 56916514927. The reversal of 56916514901 is 10941561965.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 1125602500 + 55790912401 = 33550^2 + 236201^2 .

It is a cyclic number.

It is not a de Polignac number, because 56916514901 - 2¹⁰ = 56916513877 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 (56916514801) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 37395110 + ... + 37396631.

It is an arithmetic number, because the mean of its divisors is an integer number (14247826851).

Almost surely, 2^56916514901 is an apocalyptic number.

It is an amenable number.

56916514901 is a deficient number, since it is larger than the sum of its proper divisors (74792503).

56916514901 is an equidigital number, since it uses as much as digits as its factorization.

56916514901 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 74792502.

The product of its (nonzero) digits is 291600, while the sum is 47.

The spelling of 56916514901 in words is "fifty-six billion, nine hundred sixteen million, five hundred fourteen thousand, nine hundred one".