56731567 has 6 divisors (see below), whose sum is σ = 60265328. Its totient is φ = 53394144.

The previous prime is 56731553. The next prime is 56731573. The reversal of 56731567 is 76513765.

It is a happy number.

It is a de Polignac number, because none of the positive numbers 2^k-56731567 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 (56732567) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 97863 + ... + 98440.

Almost surely, 2^56731567 is an apocalyptic number.

56731567 is a deficient number, since it is larger than the sum of its proper divisors (3533761).

56731567 is a wasteful number, since it uses less digits than its factorization.

56731567 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 196337 (or 196320 counting only the distinct ones).

The product of its digits is 132300, while the sum is 40.

The square root of 56731567 is about 7532.0360461166. The cubic root of 56731567 is about 384.2450308771.

The spelling of 56731567 in words is "fifty-six million, seven hundred thirty-one thousand, five hundred sixty-seven".