56457253 has 2 divisors, whose sum is σ = 56457254. Its totient is φ = 56457252.

The previous prime is 56457241. The next prime is 56457257. The reversal of 56457253 is 35275465.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 55845729 + 611524 = 7473^2 + 782^2 .

It is a cyclic number.

It is not a de Polignac number, because 56457253 - 2¹⁷ = 56326181 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (56457257) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 28228626 + 28228627.

It is an arithmetic number, because the mean of its divisors is an integer number (28228627).

Almost surely, 2^56457253 is an apocalyptic number.

It is an amenable number.

56457253 is a deficient number, since it is larger than the sum of its proper divisors (1).

56457253 is an equidigital number, since it uses as much as digits as its factorization.

56457253 is an evil number, because the sum of its binary digits is even.

The product of its digits is 126000, while the sum is 37.

The square root of 56457253 is about 7513.8041630056. The cubic root of 56457253 is about 383.6247169964.

The spelling of 56457253 in words is "fifty-six million, four hundred fifty-seven thousand, two hundred fifty-three".