457350521 has 2 divisors, whose sum is σ = 457350522. Its totient is φ = 457350520.

The previous prime is 457350497. The next prime is 457350571. The reversal of 457350521 is 125053754.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 379275625 + 78074896 = 19475^2 + 8836^2 .

It is a cyclic number.

It is not a de Polignac number, because 457350521 - 2²² = 453156217 is a prime.

It is a Sophie Germain prime.

It is a Curzon number.

It is not a weakly prime, because it can be changed into another prime (457350571) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 228675260 + 228675261.

It is an arithmetic number, because the mean of its divisors is an integer number (228675261).

Almost surely, 2^457350521 is an apocalyptic number.

It is an amenable number.

457350521 is a deficient number, since it is larger than the sum of its proper divisors (1).

457350521 is an equidigital number, since it uses as much as digits as its factorization.

457350521 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 21000, while the sum is 32.

The square root of 457350521 is about 21385.7550953900. The cubic root of 457350521 is about 770.4593430608.

The spelling of 457350521 in words is "four hundred fifty-seven million, three hundred fifty thousand, five hundred twenty-one".