56932921 has 2 divisors, whose sum is σ = 56932922. Its totient is φ = 56932920.

The previous prime is 56932913. The next prime is 56932927. The reversal of 56932921 is 12923965.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 47073321 + 9859600 = 6861^2 + 3140^2 .

It is a cyclic number.

It is not a de Polignac number, because 56932921 - 2³ = 56932913 is a prime.

It is not a weakly prime, because it can be changed into another prime (56932927) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 28466460 + 28466461.

It is an arithmetic number, because the mean of its divisors is an integer number (28466461).

Almost surely, 2^56932921 is an apocalyptic number.

It is an amenable number.

56932921 is a deficient number, since it is larger than the sum of its proper divisors (1).

56932921 is an equidigital number, since it uses as much as digits as its factorization.

56932921 is an evil number, because the sum of its binary digits is even.

The product of its digits is 29160, while the sum is 37.

The square root of 56932921 is about 7545.3907122163. The cubic root of 56932921 is about 384.6990868465.

The spelling of 56932921 in words is "fifty-six million, nine hundred thirty-two thousand, nine hundred twenty-one".