57393013 has 2 divisors, whose sum is σ = 57393014. Its totient is φ = 57393012.

The previous prime is 57392953. The next prime is 57393019. The reversal of 57393013 is 31039375.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 45400644 + 11992369 = 6738^2 + 3463^2 .

It is a cyclic number.

It is not a de Polignac number, because 57393013 - 2²¹ = 55295861 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (57393019) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 28696506 + 28696507.

It is an arithmetic number, because the mean of its divisors is an integer number (28696507).

Almost surely, 2^57393013 is an apocalyptic number.

It is an amenable number.

57393013 is a deficient number, since it is larger than the sum of its proper divisors (1).

57393013 is an equidigital number, since it uses as much as digits as its factorization.

57393013 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 8505, while the sum is 31.

The square root of 57393013 is about 7575.8176456406. The cubic root of 57393013 is about 385.7325973343.

The spelling of 57393013 in words is "fifty-seven million, three hundred ninety-three thousand, thirteen".