57573949 has 2 divisors, whose sum is σ = 57573950. Its totient is φ = 57573948.

The previous prime is 57573937. The next prime is 57573973. The reversal of 57573949 is 94937575.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 54493924 + 3080025 = 7382^2 + 1755^2 .

It is a cyclic number.

It is not a de Polignac number, because 57573949 - 2⁷ = 57573821 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (57573049) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 28786974 + 28786975.

It is an arithmetic number, because the mean of its divisors is an integer number (28786975).

Almost surely, 2^57573949 is an apocalyptic number.

It is an amenable number.

57573949 is a deficient number, since it is larger than the sum of its proper divisors (1).

57573949 is an equidigital number, since it uses as much as digits as its factorization.

57573949 is an evil number, because the sum of its binary digits is even.

The product of its digits is 1190700, while the sum is 49.

The square root of 57573949 is about 7587.7499299858. The cubic root of 57573949 is about 386.1375229238.

The spelling of 57573949 in words is "fifty-seven million, five hundred seventy-three thousand, nine hundred forty-nine".