56988929 has 4 divisors (see below), whose sum is σ = 57025584. Its totient is φ = 56952276.

The previous prime is 56988907. The next prime is 56988937. The reversal of 56988929 is 92988965.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-56988929 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (56988989) 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, 15887 + ... + 19140.

It is an arithmetic number, because the mean of its divisors is an integer number (14256396).

Almost surely, 2^56988929 is an apocalyptic number.

It is an amenable number.

56988929 is a deficient number, since it is larger than the sum of its proper divisors (36655).

56988929 is a wasteful number, since it uses less digits than its factorization.

56988929 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 36654.

The product of its digits is 2799360, while the sum is 56.

The square root of 56988929 is about 7549.1012047793. The cubic root of 56988929 is about 384.8251952828.

It can be divided in two parts, 569 and 88929, that added together give a palindrome (89498).

The spelling of 56988929 in words is "fifty-six million, nine hundred eighty-eight thousand, nine hundred twenty-nine".