57435621 has 8 divisors (see below), whose sum is σ = 76663584. Its totient is φ = 38249040.

The previous prime is 57435619. The next prime is 57435641. The reversal of 57435621 is 12653475.

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

It is not a de Polignac number, because 57435621 - 2¹ = 57435619 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (57435601) 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, 6946 + ... + 12771.

It is an arithmetic number, because the mean of its divisors is an integer number (9582948).

Almost surely, 2^57435621 is an apocalyptic number.

It is an amenable number.

57435621 is a deficient number, since it is larger than the sum of its proper divisors (19227963).

57435621 is a wasteful number, since it uses less digits than its factorization.

57435621 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 20691.

The product of its digits is 25200, while the sum is 33.

The square root of 57435621 is about 7578.6292296167. The cubic root of 57435621 is about 385.8280283993.

The spelling of 57435621 in words is "fifty-seven million, four hundred thirty-five thousand, six hundred twenty-one".