57490469 has 2 divisors, whose sum is σ = 57490470. Its totient is φ = 57490468.

The previous prime is 57490463. The next prime is 57490553. The reversal of 57490469 is 96409475.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 55681444 + 1809025 = 7462^2 + 1345^2 .

It is a cyclic number.

It is not a de Polignac number, because 57490469 - 2²⁰ = 56441893 is a prime.

It is a super-2 number, since 2×57490469² = 6610308051679922, which contains 22 as substring.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (57490463) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 28745234 + 28745235.

It is an arithmetic number, because the mean of its divisors is an integer number (28745235).

Almost surely, 2^57490469 is an apocalyptic number.

It is an amenable number.

57490469 is a deficient number, since it is larger than the sum of its proper divisors (1).

57490469 is an equidigital number, since it uses as much as digits as its factorization.

57490469 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 272160, while the sum is 44.

The square root of 57490469 is about 7582.2469624775. The cubic root of 57490469 is about 385.9508044903.

The spelling of 57490469 in words is "fifty-seven million, four hundred ninety thousand, four hundred sixty-nine".