56401235487 has 12 divisors (see below), whose sum is σ = 81809326560. Its totient is φ = 37443496608.

The previous prime is 56401235453. The next prime is 56401235503. The reversal of 56401235487 is 78453210465.

56401235487 is a `hidden beast` number, since 5 + 6 + 40 + 123 + 5 + 487 = 666.

56401235487 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 56401235487 - 2¹⁴ = 56401219103 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (56401235447) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 13108318 + ... + 13112619.

It is an arithmetic number, because the mean of its divisors is an integer number (6817443880).

Almost surely, 2^56401235487 is an apocalyptic number.

56401235487 is a deficient number, since it is larger than the sum of its proper divisors (25408091073).

56401235487 is a wasteful number, since it uses less digits than its factorization.

56401235487 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 26221182 (or 26221179 counting only the distinct ones).

The product of its (nonzero) digits is 806400, while the sum is 45.

The spelling of 56401235487 in words is "fifty-six billion, four hundred one million, two hundred thirty-five thousand, four hundred eighty-seven".