57213099 has 6 divisors (see below), whose sum is σ = 82641156. Its totient is φ = 38142060.

The previous prime is 57213089. The next prime is 57213133. The reversal of 57213099 is 99031275.

It is not a de Polignac number, because 57213099 - 2⁹ = 57212587 is a prime.

It is not an unprimeable number, because it can be changed into a prime (57213089) 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 in 5 ways as a sum of consecutive naturals, for example, 3178497 + ... + 3178514.

It is an arithmetic number, because the mean of its divisors is an integer number (13773526).

Almost surely, 2^57213099 is an apocalyptic number.

57213099 is a deficient number, since it is larger than the sum of its proper divisors (25428057).

57213099 is a wasteful number, since it uses less digits than its factorization.

57213099 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6357017 (or 6357014 counting only the distinct ones).

The product of its (nonzero) digits is 17010, while the sum is 36.

The square root of 57213099 is about 7563.9340954294. The cubic root of 57213099 is about 385.3291142052.

The spelling of 57213099 in words is "fifty-seven million, two hundred thirteen thousand, ninety-nine".