56812553 has 16 divisors (see below), whose sum is σ = 69943296. Its totient is φ = 45072720.

The previous prime is 56812549. The next prime is 56812559. The reversal of 56812553 is 35521865.

It is not a de Polignac number, because 56812553 - 2² = 56812549 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (56812559) 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 15 ways as a sum of consecutive naturals, for example, 701 + ... + 10682.

It is an arithmetic number, because the mean of its divisors is an integer number (4371456).

Almost surely, 2^56812553 is an apocalyptic number.

It is an amenable number.

56812553 is a deficient number, since it is larger than the sum of its proper divisors (13130743).

56812553 is a wasteful number, since it uses less digits than its factorization.

56812553 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11444.

The product of its digits is 36000, while the sum is 35.

The square root of 56812553 is about 7537.4102316379. The cubic root of 56812553 is about 384.4277843478.

The spelling of 56812553 in words is "fifty-six million, eight hundred twelve thousand, five hundred fifty-three".