57432313 has 2 divisors, whose sum is σ = 57432314. Its totient is φ = 57432312.

The previous prime is 57432299. The next prime is 57432343. The reversal of 57432313 is 31323475.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 43204329 + 14227984 = 6573^2 + 3772^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-57432313 is a prime.

It is not a weakly prime, because it can be changed into another prime (57432343) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 28716156 + 28716157.

It is an arithmetic number, because the mean of its divisors is an integer number (28716157).

Almost surely, 2^57432313 is an apocalyptic number.

It is an amenable number.

57432313 is a deficient number, since it is larger than the sum of its proper divisors (1).

57432313 is an equidigital number, since it uses as much as digits as its factorization.

57432313 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 7560, while the sum is 28.

The square root of 57432313 is about 7578.4109812018. The cubic root of 57432313 is about 385.8206210122.

Adding to 57432313 its reverse (31323475), we get a palindrome (88755788).

The spelling of 57432313 in words is "fifty-seven million, four hundred thirty-two thousand, three hundred thirteen".