56571007 has 16 divisors (see below), whose sum is σ = 60383232. Its totient is φ = 52889760.

The previous prime is 56570993. The next prime is 56571013. The reversal of 56571007 is 70017565.

It is a cyclic number.

It is not a de Polignac number, because 56571007 - 2¹⁵ = 56538239 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 56571007.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (56571107) 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, 312457 + ... + 312637.

It is an arithmetic number, because the mean of its divisors is an integer number (3773952).

Almost surely, 2^56571007 is an apocalyptic number.

56571007 is a deficient number, since it is larger than the sum of its proper divisors (3812225).

56571007 is a wasteful number, since it uses less digits than its factorization.

56571007 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 438.

The product of its (nonzero) digits is 7350, while the sum is 31.

The square root of 56571007 is about 7521.3700214788. The cubic root of 56571007 is about 383.8821953990.

The spelling of 56571007 in words is "fifty-six million, five hundred seventy-one thousand, seven".