457645057 has 2 divisors, whose sum is σ = 457645058. Its totient is φ = 457645056.

The previous prime is 457645009. The next prime is 457645079. The reversal of 457645057 is 750546754.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 254753521 + 202891536 = 15961^2 + 14244^2 .

It is a cyclic number.

It is not a de Polignac number, because 457645057 - 2¹⁵ = 457612289 is a prime.

It is not a weakly prime, because it can be changed into another prime (457645957) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 228822528 + 228822529.

It is an arithmetic number, because the mean of its divisors is an integer number (228822529).

Almost surely, 2^457645057 is an apocalyptic number.

It is an amenable number.

457645057 is a deficient number, since it is larger than the sum of its proper divisors (1).

457645057 is an equidigital number, since it uses as much as digits as its factorization.

457645057 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 588000, while the sum is 43.

The square root of 457645057 is about 21392.6402531338. The cubic root of 457645057 is about 770.6247007794.

The spelling of 457645057 in words is "four hundred fifty-seven million, six hundred forty-five thousand, fifty-seven".