56525547 has 16 divisors (see below), whose sum is σ = 81915680. Its totient is φ = 34463232.

The previous prime is 56525543. The next prime is 56525549. The reversal of 56525547 is 74552565.

It is not a de Polignac number, because 56525547 - 2² = 56525543 is a prime.

It is a Smith number, since the sum of its digits (39) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a Harshad number since it is a multiple of its sum of digits (39).

It is not an unprimeable number, because it can be changed into a prime (56525543) 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, 2398 + ... + 10899.

It is an arithmetic number, because the mean of its divisors is an integer number (5119730).

Almost surely, 2^56525547 is an apocalyptic number.

56525547 is a deficient number, since it is larger than the sum of its proper divisors (25390133).

56525547 is a wasteful number, since it uses less digits than its factorization.

56525547 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13422.

The product of its digits is 210000, while the sum is 39.

The square root of 56525547 is about 7518.3473582962. The cubic root of 56525547 is about 383.7793396419.

The spelling of 56525547 in words is "fifty-six million, five hundred twenty-five thousand, five hundred forty-seven".