57490457 has 2 divisors, whose sum is σ = 57490458. Its totient is φ = 57490456.

The previous prime is 57490439. The next prime is 57490463. The reversal of 57490457 is 75409475.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 55115776 + 2374681 = 7424^2 + 1541^2 .

It is a cyclic number.

It is not a de Polignac number, because 57490457 - 2⁶ = 57490393 is a prime.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (57490357) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 28745228 + 28745229.

It is an arithmetic number, because the mean of its divisors is an integer number (28745229).

Almost surely, 2^57490457 is an apocalyptic number.

It is an amenable number.

57490457 is a deficient number, since it is larger than the sum of its proper divisors (1).

57490457 is an equidigital number, since it uses as much as digits as its factorization.

57490457 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 176400, while the sum is 41.

The square root of 57490457 is about 7582.2461711554. The cubic root of 57490457 is about 385.9507776371.

The spelling of 57490457 in words is "fifty-seven million, four hundred ninety thousand, four hundred fifty-seven".