57391363 has 2 divisors, whose sum is σ = 57391364. Its totient is φ = 57391362.

The previous prime is 57391361. The next prime is 57391391. The reversal of 57391363 is 36319375.

It is a happy number.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 57391363 - 2¹ = 57391361 is a prime.

Together with 57391361, it forms a pair of twin primes.

It is not a weakly prime, because it can be changed into another prime (57391361) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 28695681 + 28695682.

It is an arithmetic number, because the mean of its divisors is an integer number (28695682).

Almost surely, 2^57391363 is an apocalyptic number.

57391363 is a deficient number, since it is larger than the sum of its proper divisors (1).

57391363 is an equidigital number, since it uses as much as digits as its factorization.

57391363 is an evil number, because the sum of its binary digits is even.

The product of its digits is 51030, while the sum is 37.

The square root of 57391363 is about 7575.7087457214. The cubic root of 57391363 is about 385.7289008049.

The spelling of 57391363 in words is "fifty-seven million, three hundred ninety-one thousand, three hundred sixty-three".