56017457 has 2 divisors, whose sum is σ = 56017458. Its totient is φ = 56017456.

The previous prime is 56017441. The next prime is 56017469. The reversal of 56017457 is 75471065.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 40462321 + 15555136 = 6361^2 + 3944^2 .

It is a cyclic number.

It is not a de Polignac number, because 56017457 - 2⁴ = 56017441 is a prime.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (56017657) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 28008728 + 28008729.

It is an arithmetic number, because the mean of its divisors is an integer number (28008729).

Almost surely, 2^56017457 is an apocalyptic number.

It is an amenable number.

56017457 is a deficient number, since it is larger than the sum of its proper divisors (1).

56017457 is an equidigital number, since it uses as much as digits as its factorization.

56017457 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 29400, while the sum is 35.

The square root of 56017457 is about 7484.4810775364. The cubic root of 56017457 is about 382.6259872334.

The spelling of 56017457 in words is "fifty-six million, seventeen thousand, four hundred fifty-seven".