57495149 has 2 divisors, whose sum is σ = 57495150. Its totient is φ = 57495148.

The previous prime is 57495133. The next prime is 57495169. The reversal of 57495149 is 94159475.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 29214025 + 28281124 = 5405^2 + 5318^2 .

It is a cyclic number.

It is not a de Polignac number, because 57495149 - 2⁴ = 57495133 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (57495169) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 28747574 + 28747575.

It is an arithmetic number, because the mean of its divisors is an integer number (28747575).

Almost surely, 2^57495149 is an apocalyptic number.

It is an amenable number.

57495149 is a deficient number, since it is larger than the sum of its proper divisors (1).

57495149 is an equidigital number, since it uses as much as digits as its factorization.

57495149 is an evil number, because the sum of its binary digits is even.

The product of its digits is 226800, while the sum is 44.

The square root of 57495149 is about 7582.5555718372. Note that the first 4 decimals coincide. The cubic root of 57495149 is about 385.9612769552.

The spelling of 57495149 in words is "fifty-seven million, four hundred ninety-five thousand, one hundred forty-nine".