56475121 has 2 divisors, whose sum is σ = 56475122. Its totient is φ = 56475120.

The previous prime is 56475113. The next prime is 56475187. The reversal of 56475121 is 12157465.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 39828721 + 16646400 = 6311^2 + 4080^2 .

It is a cyclic number.

It is not a de Polignac number, because 56475121 - 2³ = 56475113 is a prime.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (56475421) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 28237560 + 28237561.

It is an arithmetic number, because the mean of its divisors is an integer number (28237561).

Almost surely, 2^56475121 is an apocalyptic number.

It is an amenable number.

56475121 is a deficient number, since it is larger than the sum of its proper divisors (1).

56475121 is an equidigital number, since it uses as much as digits as its factorization.

56475121 is an evil number, because the sum of its binary digits is even.

The product of its digits is 8400, while the sum is 31.

The square root of 56475121 is about 7514.9930805025. The cubic root of 56475121 is about 383.6651835032.

The spelling of 56475121 in words is "fifty-six million, four hundred seventy-five thousand, one hundred twenty-one".