56726567 has 4 divisors (see below), whose sum is σ = 56742840. Its totient is φ = 56710296.

The previous prime is 56726563. The next prime is 56726591. The reversal of 56726567 is 76562765.

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 56726567 - 2² = 56726563 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 (56726563) 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, 548 + ... + 10665.

It is an arithmetic number, because the mean of its divisors is an integer number (14185710).

Almost surely, 2^56726567 is an apocalyptic number.

56726567 is a deficient number, since it is larger than the sum of its proper divisors (16273).

56726567 is a wasteful number, since it uses less digits than its factorization.

56726567 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 16272.

The product of its digits is 529200, while the sum is 44.

The square root of 56726567 is about 7531.7041232380. The cubic root of 56726567 is about 384.2337421497.

The spelling of 56726567 in words is "fifty-six million, seven hundred twenty-six thousand, five hundred sixty-seven".