56825921 has 2 divisors, whose sum is σ = 56825922. Its totient is φ = 56825920.

The previous prime is 56825897. The next prime is 56825927. The reversal of 56825921 is 12952865.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 52765696 + 4060225 = 7264^2 + 2015^2 .

It is a cyclic number.

It is not a de Polignac number, because 56825921 - 2¹⁴ = 56809537 is a prime.

It is not a weakly prime, because it can be changed into another prime (56825927) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 28412960 + 28412961.

It is an arithmetic number, because the mean of its divisors is an integer number (28412961).

Almost surely, 2^56825921 is an apocalyptic number.

It is an amenable number.

56825921 is a deficient number, since it is larger than the sum of its proper divisors (1).

56825921 is an equidigital number, since it uses as much as digits as its factorization.

56825921 is an evil number, because the sum of its binary digits is even.

The product of its digits is 43200, while the sum is 38.

The square root of 56825921 is about 7538.2969562097. The cubic root of 56825921 is about 384.4579339499.

The spelling of 56825921 in words is "fifty-six million, eight hundred twenty-five thousand, nine hundred twenty-one".