57380737 has 2 divisors, whose sum is σ = 57380738. Its totient is φ = 57380736.

The previous prime is 57380717. The next prime is 57380753. The reversal of 57380737 is 73708375.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 38925121 + 18455616 = 6239^2 + 4296^2 .

It is a cyclic number.

It is not a de Polignac number, because 57380737 - 2²³ = 48992129 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 57380737.

It is not a weakly prime, because it can be changed into another prime (57380707) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 28690368 + 28690369.

It is an arithmetic number, because the mean of its divisors is an integer number (28690369).

Almost surely, 2^57380737 is an apocalyptic number.

It is an amenable number.

57380737 is a deficient number, since it is larger than the sum of its proper divisors (1).

57380737 is an equidigital number, since it uses as much as digits as its factorization.

57380737 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 123480, while the sum is 40.

The square root of 57380737 is about 7575.0073927357. The cubic root of 57380737 is about 385.7050934579.

The spelling of 57380737 in words is "fifty-seven million, three hundred eighty thousand, seven hundred thirty-seven".