57402469 has 2 divisors, whose sum is σ = 57402470. Its totient is φ = 57402468.

The previous prime is 57402437. The next prime is 57402491. The reversal of 57402469 is 96420475.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 56325025 + 1077444 = 7505^2 + 1038^2 .

It is a cyclic number.

It is not a de Polignac number, because 57402469 - 2⁵ = 57402437 is a prime.

It is a super-2 number, since 2×57402469² = 6590086894591922, which contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (57412469) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 28701234 + 28701235.

It is an arithmetic number, because the mean of its divisors is an integer number (28701235).

Almost surely, 2^57402469 is an apocalyptic number.

It is an amenable number.

57402469 is a deficient number, since it is larger than the sum of its proper divisors (1).

57402469 is an equidigital number, since it uses as much as digits as its factorization.

57402469 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 60480, while the sum is 37.

The square root of 57402469 is about 7576.4417109881. The cubic root of 57402469 is about 385.7537804421.

The spelling of 57402469 in words is "fifty-seven million, four hundred two thousand, four hundred sixty-nine".