56988571 has 4 divisors (see below), whose sum is σ = 58826944. Its totient is φ = 55150200.

The previous prime is 56988563. The next prime is 56988587. The reversal of 56988571 is 17588965.

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 56988571 - 2³ = 56988563 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (56988511) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 919140 + ... + 919201.

It is an arithmetic number, because the mean of its divisors is an integer number (14706736).

Almost surely, 2^56988571 is an apocalyptic number.

56988571 is a deficient number, since it is larger than the sum of its proper divisors (1838373).

56988571 is a wasteful number, since it uses less digits than its factorization.

56988571 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1838372.

The product of its digits is 604800, while the sum is 49.

The square root of 56988571 is about 7549.0774933100. The cubic root of 56988571 is about 384.8243894671.

The spelling of 56988571 in words is "fifty-six million, nine hundred eighty-eight thousand, five hundred seventy-one".