57233513 has 2 divisors, whose sum is σ = 57233514. Its totient is φ = 57233512.

The previous prime is 57233489. The next prime is 57233549. The reversal of 57233513 is 31533275.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 37847104 + 19386409 = 6152^2 + 4403^2 .

It is a cyclic number.

It is not a de Polignac number, because 57233513 - 2²⁰ = 56184937 is a prime.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (57233573) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 28616756 + 28616757.

It is an arithmetic number, because the mean of its divisors is an integer number (28616757).

Almost surely, 2^57233513 is an apocalyptic number.

It is an amenable number.

57233513 is a deficient number, since it is larger than the sum of its proper divisors (1).

57233513 is an equidigital number, since it uses as much as digits as its factorization.

57233513 is an evil number, because the sum of its binary digits is even.

The product of its digits is 9450, while the sum is 29.

The square root of 57233513 is about 7565.2834051343. The cubic root of 57233513 is about 385.3749380538.

Adding to 57233513 its reverse (31533275), we get a palindrome (88766788).

The spelling of 57233513 in words is "fifty-seven million, two hundred thirty-three thousand, five hundred thirteen".