56631527 has 4 divisors (see below), whose sum is σ = 56847120. Its totient is φ = 56415936.

The previous prime is 56631521. The next prime is 56631541. The reversal of 56631527 is 72513665.

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 56631527 - 2⁴ = 56631511 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 (56631521) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 107402 + ... + 107927.

It is an arithmetic number, because the mean of its divisors is an integer number (14211780).

Almost surely, 2^56631527 is an apocalyptic number.

56631527 is a deficient number, since it is larger than the sum of its proper divisors (215593).

56631527 is a wasteful number, since it uses less digits than its factorization.

56631527 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 215592.

The product of its digits is 37800, while the sum is 35.

The square root of 56631527 is about 7525.3921492504. The cubic root of 56631527 is about 384.0190397641.

The spelling of 56631527 in words is "fifty-six million, six hundred thirty-one thousand, five hundred twenty-seven".