56440967 has 4 divisors (see below), whose sum is σ = 61571976. Its totient is φ = 51309960.

The previous prime is 56440949. The next prime is 56440973. The reversal of 56440967 is 76904465.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-56440967 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 (56440927) 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, 2565488 + ... + 2565509.

It is an arithmetic number, because the mean of its divisors is an integer number (15392994).

Almost surely, 2^56440967 is an apocalyptic number.

56440967 is a deficient number, since it is larger than the sum of its proper divisors (5131009).

56440967 is a wasteful number, since it uses less digits than its factorization.

56440967 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5131008.

The product of its (nonzero) digits is 181440, while the sum is 41.

The square root of 56440967 is about 7512.7203461862. The cubic root of 56440967 is about 383.5878258817.

The spelling of 56440967 in words is "fifty-six million, four hundred forty thousand, nine hundred sixty-seven".