56427631 has 4 divisors (see below), whose sum is σ = 60768232. Its totient is φ = 52087032.

The previous prime is 56427629. The next prime is 56427647. The reversal of 56427631 is 13672465.

It is a happy number.

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

It is a cyclic number.

It is not a de Polignac number, because 56427631 - 2¹ = 56427629 is a prime.

It is a super-2 number, since 2×56427631² = 6368155080544322, which 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 (56427731) 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, 2170281 + ... + 2170306.

It is an arithmetic number, because the mean of its divisors is an integer number (15192058).

Almost surely, 2^56427631 is an apocalyptic number.

56427631 is a deficient number, since it is larger than the sum of its proper divisors (4340601).

56427631 is a wasteful number, since it uses less digits than its factorization.

56427631 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4340600.

The product of its digits is 30240, while the sum is 34.

The square root of 56427631 is about 7511.8327324296. The cubic root of 56427631 is about 383.5576118340.

The spelling of 56427631 in words is "fifty-six million, four hundred twenty-seven thousand, six hundred thirty-one".