57861413 has 2 divisors, whose sum is σ = 57861414. Its totient is φ = 57861412.

The previous prime is 57861361. The next prime is 57861443. The reversal of 57861413 is 31416875.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 57047809 + 813604 = 7553^2 + 902^2 .

It is a cyclic number.

It is not a de Polignac number, because 57861413 - 2⁸ = 57861157 is a prime.

It is a super-2 number, since 2×57861413² = 6695886228713138, which contains 22 as substring.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (57861443) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 28930706 + 28930707.

It is an arithmetic number, because the mean of its divisors is an integer number (28930707).

Almost surely, 2^57861413 is an apocalyptic number.

It is an amenable number.

57861413 is a deficient number, since it is larger than the sum of its proper divisors (1).

57861413 is an equidigital number, since it uses as much as digits as its factorization.

57861413 is an evil number, because the sum of its binary digits is even.

The product of its digits is 20160, while the sum is 35.

The square root of 57861413 is about 7606.6689818869. The cubic root of 57861413 is about 386.7791117514.

The spelling of 57861413 in words is "fifty-seven million, eight hundred sixty-one thousand, four hundred thirteen".