56137551 has 16 divisors (see below), whose sum is σ = 76204800. Its totient is φ = 36753728.

The previous prime is 56137541. The next prime is 56137567. The reversal of 56137551 is 15573165.

It is a cyclic number.

It is not a de Polignac number, because 56137551 - 2¹⁰ = 56136527 is a prime.

It is a nialpdrome in base 14.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (56137541) 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, 43960 + ... + 45218.

It is an arithmetic number, because the mean of its divisors is an integer number (4762800).

Almost surely, 2^56137551 is an apocalyptic number.

56137551 is a deficient number, since it is larger than the sum of its proper divisors (20067249).

56137551 is a wasteful number, since it uses less digits than its factorization.

56137551 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1518.

The product of its digits is 15750, while the sum is 33.

The square root of 56137551 is about 7492.4996496496. The cubic root of 56137551 is about 382.8992251914.

The spelling of 56137551 in words is "fifty-six million, one hundred thirty-seven thousand, five hundred fifty-one".