56491706431 has 2 divisors, whose sum is σ = 56491706432. Its totient is φ = 56491706430.

The previous prime is 56491706419. The next prime is 56491706483. The reversal of 56491706431 is 13460719465.

56491706431 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 56491706431 - 2²⁵ = 56458151999 is a prime.

It is a super-2 number, since 2×56491706431² (a number of 22 digits) contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (56491776431) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 28245853215 + 28245853216.

It is an arithmetic number, because the mean of its divisors is an integer number (28245853216).

Almost surely, 2^56491706431 is an apocalyptic number.

56491706431 is a deficient number, since it is larger than the sum of its proper divisors (1).

56491706431 is an equidigital number, since it uses as much as digits as its factorization.

56491706431 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 544320, while the sum is 46.

The spelling of 56491706431 in words is "fifty-six billion, four hundred ninety-one million, seven hundred six thousand, four hundred thirty-one".