57324649 has 2 divisors, whose sum is σ = 57324650. Its totient is φ = 57324648.

The previous prime is 57324613. The next prime is 57324713. The reversal of 57324649 is 94642375.

It is a happy number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 48052624 + 9272025 = 6932^2 + 3045^2 .

It is a cyclic number.

It is not a de Polignac number, because 57324649 - 2¹⁹ = 56800361 is a prime.

It is a super-2 number, since 2×57324649² = 6572230765946402, which contains 22 as substring.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (57324049) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 28662324 + 28662325.

It is an arithmetic number, because the mean of its divisors is an integer number (28662325).

Almost surely, 2^57324649 is an apocalyptic number.

It is an amenable number.

57324649 is a deficient number, since it is larger than the sum of its proper divisors (1).

57324649 is an equidigital number, since it uses as much as digits as its factorization.

57324649 is an evil number, because the sum of its binary digits is even.

The product of its digits is 181440, while the sum is 40.

The square root of 57324649 is about 7571.3043129965. The cubic root of 57324649 is about 385.5793806552.

The spelling of 57324649 in words is "fifty-seven million, three hundred twenty-four thousand, six hundred forty-nine".