57490997 has 2 divisors, whose sum is σ = 57490998. Its totient is φ = 57490996.

The previous prime is 57490967. The next prime is 57490999. The reversal of 57490997 is 79909475.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 46771921 + 10719076 = 6839^2 + 3274^2 .

It is a cyclic number.

It is not a de Polignac number, because 57490997 - 2¹⁰ = 57489973 is a prime.

Together with 57490999, it forms a pair of twin primes.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (57490999) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 28745498 + 28745499.

It is an arithmetic number, because the mean of its divisors is an integer number (28745499).

Almost surely, 2^57490997 is an apocalyptic number.

It is an amenable number.

57490997 is a deficient number, since it is larger than the sum of its proper divisors (1).

57490997 is an equidigital number, since it uses as much as digits as its factorization.

57490997 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 714420, while the sum is 50.

The square root of 57490997 is about 7582.2817805724. The cubic root of 57490997 is about 385.9519860276.

The spelling of 57490997 in words is "fifty-seven million, four hundred ninety thousand, nine hundred ninety-seven".