56671525 has 6 divisors (see below), whose sum is σ = 70272722. Its totient is φ = 45337200.

The previous prime is 56671507. The next prime is 56671529. The reversal of 56671525 is 52517665.

56671525 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 3 ways, for example, as 9529569 + 47141956 = 3087^2 + 6866^2 .

It is not a de Polignac number, because 56671525 - 2⁵ = 56671493 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 (56671529) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 1133406 + ... + 1133455.

Almost surely, 2^56671525 is an apocalyptic number.

It is an amenable number.

56671525 is a deficient number, since it is larger than the sum of its proper divisors (13601197).

56671525 is a wasteful number, since it uses less digits than its factorization.

56671525 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2266871 (or 2266866 counting only the distinct ones).

The product of its digits is 63000, while the sum is 37.

The square root of 56671525 is about 7528.0492160984. The cubic root of 56671525 is about 384.1094274546.

The spelling of 56671525 in words is "fifty-six million, six hundred seventy-one thousand, five hundred twenty-five".