57456473 has 2 divisors, whose sum is σ = 57456474. Its totient is φ = 57456472.

The previous prime is 57456439. The next prime is 57456499. The reversal of 57456473 is 37465475.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 47293129 + 10163344 = 6877^2 + 3188^2 .

It is a cyclic number.

It is not a de Polignac number, because 57456473 - 2¹⁸ = 57194329 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 57456473.

It is not a weakly prime, because it can be changed into another prime (57456433) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 28728236 + 28728237.

It is an arithmetic number, because the mean of its divisors is an integer number (28728237).

Almost surely, 2^57456473 is an apocalyptic number.

It is an amenable number.

57456473 is a deficient number, since it is larger than the sum of its proper divisors (1).

57456473 is an equidigital number, since it uses as much as digits as its factorization.

57456473 is an evil number, because the sum of its binary digits is even.

The product of its digits is 352800, while the sum is 41.

The square root of 57456473 is about 7580.0048153019. The cubic root of 57456473 is about 385.8747143669.

The spelling of 57456473 in words is "fifty-seven million, four hundred fifty-six thousand, four hundred seventy-three".