57256973 has 2 divisors, whose sum is σ = 57256974. Its totient is φ = 57256972.

The previous prime is 57256961. The next prime is 57257009. The reversal of 57256973 is 37965275.

57256973 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 36808489 + 20448484 = 6067^2 + 4522^2 .

It is a cyclic number.

It is not a de Polignac number, because 57256973 - 2¹⁶ = 57191437 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (57256943) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 28628486 + 28628487.

It is an arithmetic number, because the mean of its divisors is an integer number (28628487).

Almost surely, 2^57256973 is an apocalyptic number.

It is an amenable number.

57256973 is a deficient number, since it is larger than the sum of its proper divisors (1).

57256973 is an equidigital number, since it uses as much as digits as its factorization.

57256973 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 396900, while the sum is 44.

The square root of 57256973 is about 7566.8337499908. The cubic root of 57256973 is about 385.4275858853.

The spelling of 57256973 in words is "fifty-seven million, two hundred fifty-six thousand, nine hundred seventy-three".