57363621 has 16 divisors (see below), whose sum is σ = 87731328. Its totient is φ = 32659200.

The previous prime is 57363617. The next prime is 57363623. The reversal of 57363621 is 12636375.

It is not a de Polignac number, because 57363621 - 2² = 57363617 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (57363623) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1041 + ... + 10761.

It is an arithmetic number, because the mean of its divisors is an integer number (5483208).

Almost surely, 2^57363621 is an apocalyptic number.

It is an amenable number.

57363621 is a deficient number, since it is larger than the sum of its proper divisors (30367707).

57363621 is a wasteful number, since it uses less digits than its factorization.

57363621 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10012.

The product of its digits is 22680, while the sum is 33.

The square root of 57363621 is about 7573.8775405997. The cubic root of 57363621 is about 385.6667392108. Note that the first 3 decimals are identical.

Adding to 57363621 its reverse (12636375), we get a palindrome (69999996).

The spelling of 57363621 in words is "fifty-seven million, three hundred sixty-three thousand, six hundred twenty-one".