57249992 has 16 divisors (see below), whose sum is σ = 107432460. Its totient is φ = 28601344.

The previous prime is 57249979. The next prime is 57250003. The reversal of 57249992 is 29994275.

It can be written as a sum of positive squares in 2 ways, for example, as 43217476 + 14032516 = 6574^2 + 3746^2 .

It is an unprimeable number.

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 3 ways as a sum of consecutive naturals, for example, 11468 + ... + 15684.

Almost surely, 2^57249992 is an apocalyptic number.

It is an amenable number.

57249992 is a deficient number, since it is larger than the sum of its proper divisors (50182468).

57249992 is a wasteful number, since it uses less digits than its factorization.

57249992 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5920 (or 5916 counting only the distinct ones).

The product of its digits is 408240, while the sum is 47.

The square root of 57249992 is about 7566.3724465559. The cubic root of 57249992 is about 385.4119209558.

The spelling of 57249992 in words is "fifty-seven million, two hundred forty-nine thousand, nine hundred ninety-two".