57401213 has 2 divisors, whose sum is σ = 57401214. Its totient is φ = 57401212.

The previous prime is 57401191. The next prime is 57401233. The reversal of 57401213 is 31210475.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 43059844 + 14341369 = 6562^2 + 3787^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-57401213 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (57401233) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 28700606 + 28700607.

It is an arithmetic number, because the mean of its divisors is an integer number (28700607).

Almost surely, 2^57401213 is an apocalyptic number.

It is an amenable number.

57401213 is a deficient number, since it is larger than the sum of its proper divisors (1).

57401213 is an equidigital number, since it uses as much as digits as its factorization.

57401213 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 840, while the sum is 23.

The square root of 57401213 is about 7576.3588220200. The cubic root of 57401213 is about 385.7509669146.

Adding to 57401213 its reverse (31210475), we get a palindrome (88611688).

The spelling of 57401213 in words is "fifty-seven million, four hundred one thousand, two hundred thirteen".