56634221431 has 16 divisors (see below), whose sum is σ = 58717346688. Its totient is φ = 54590608800.

The previous prime is 56634221407. The next prime is 56634221471. The reversal of 56634221431 is 13412243665.

It is a cyclic number.

It is not a de Polignac number, because 56634221431 - 2⁹ = 56634220919 is a prime.

It is a super-2 number, since 2×56634221431² (a number of 22 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (56634221401) 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, 991800 + ... + 1047346.

It is an arithmetic number, because the mean of its divisors is an integer number (3669834168).

Almost surely, 2^56634221431 is an apocalyptic number.

56634221431 is a deficient number, since it is larger than the sum of its proper divisors (2083125257).

56634221431 is a wasteful number, since it uses less digits than its factorization.

56634221431 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 55902.

The product of its digits is 103680, while the sum is 37.

The spelling of 56634221431 in words is "fifty-six billion, six hundred thirty-four million, two hundred twenty-one thousand, four hundred thirty-one".