57433921 has 8 divisors (see below), whose sum is σ = 60160320. Its totient is φ = 54726672.

The previous prime is 57433919. The next prime is 57433969. The reversal of 57433921 is 12933475.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 57433921 - 2¹ = 57433919 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (57433121) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1546 + ... + 10828.

It is an arithmetic number, because the mean of its divisors is an integer number (7520040).

Almost surely, 2^57433921 is an apocalyptic number.

It is an amenable number.

57433921 is a deficient number, since it is larger than the sum of its proper divisors (2726399).

57433921 is a wasteful number, since it uses less digits than its factorization.

57433921 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9575.

The product of its digits is 22680, while the sum is 34.

The square root of 57433921 is about 7578.5170713010. The cubic root of 57433921 is about 385.8242217365.

The spelling of 57433921 in words is "fifty-seven million, four hundred thirty-three thousand, nine hundred twenty-one".