56980057 has 4 divisors (see below), whose sum is σ = 56995380. Its totient is φ = 56964736.

The previous prime is 56980051. The next prime is 56980087. The reversal of 56980057 is 75008965.

It is a happy number.

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length, and also an emirpimes, since its reverse is a distinct semiprime: 75008965 = 5 ⋅15001793.

It can be written as a sum of positive squares in 2 ways, for example, as 28132416 + 28847641 = 5304^2 + 5371^2 .

It is a cyclic number.

It is not a de Polignac number, because 56980057 - 2²³ = 48591449 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (56980051) 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, 1869 + ... + 10837.

It is an arithmetic number, because the mean of its divisors is an integer number (14248845).

Almost surely, 2^56980057 is an apocalyptic number.

It is an amenable number.

56980057 is a deficient number, since it is larger than the sum of its proper divisors (15323).

56980057 is an equidigital number, since it uses as much as digits as its factorization.

56980057 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 15322.

The product of its (nonzero) digits is 75600, while the sum is 40.

The square root of 56980057 is about 7548.5135622850. The cubic root of 56980057 is about 384.8052244663.

The spelling of 56980057 in words is "fifty-six million, nine hundred eighty thousand, fifty-seven".