56547870 has 32 divisors (see below), whose sum is σ = 136539648. Its totient is φ = 14987808.

The previous prime is 56547863. The next prime is 56547871. The reversal of 56547870 is 7874565.

It is an alternating number because its digits alternate between odd and even.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (56547871) 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, 634 + ... + 10653.

It is an arithmetic number, because the mean of its divisors is an integer number (4266864).

Almost surely, 2^56547870 is an apocalyptic number.

56547870 is an abundant number, since it is smaller than the sum of its proper divisors (79991778).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

56547870 is a wasteful number, since it uses less digits than its factorization.

56547870 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11464.

The product of its (nonzero) digits is 235200, while the sum is 42.

The square root of 56547870 is about 7519.8317800334. The cubic root of 56547870 is about 383.8298535489.

The spelling of 56547870 in words is "fifty-six million, five hundred forty-seven thousand, eight hundred seventy".