57149033 has 2 divisors, whose sum is σ = 57149034. Its totient is φ = 57149032.

The previous prime is 57149023. The next prime is 57149041. The reversal of 57149033 is 33094175.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 52954729 + 4194304 = 7277^2 + 2048^2 .

It is a cyclic number.

It is not a de Polignac number, because 57149033 - 2¹² = 57144937 is a prime.

It is not a weakly prime, because it can be changed into another prime (57149003) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 28574516 + 28574517.

It is an arithmetic number, because the mean of its divisors is an integer number (28574517).

Almost surely, 2^57149033 is an apocalyptic number.

It is an amenable number.

57149033 is a deficient number, since it is larger than the sum of its proper divisors (1).

57149033 is an equidigital number, since it uses as much as digits as its factorization.

57149033 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 11340, while the sum is 32.

The square root of 57149033 is about 7559.6979437012. The cubic root of 57149033 is about 385.1852327301.

The spelling of 57149033 in words is "fifty-seven million, one hundred forty-nine thousand, thirty-three".