57732020 has 18 divisors (see below), whose sum is σ = 121308642. Its totient is φ = 23079216.

The previous prime is 57732007. The next prime is 57732023. The reversal of 57732020 is 2023775.

It can be written as a sum of positive squares in only one way, i.e., 46185616 + 11546404 = 6796^2 + 3398^2 .

It is a super-2 number, since 2×57732020² = 6665972266560800, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (57732023) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 33131 + ... + 34829.

It is an arithmetic number, because the mean of its divisors is an integer number (6739369).

Almost surely, 2^57732020 is an apocalyptic number.

It is an amenable number.

57732020 is an abundant number, since it is smaller than the sum of its proper divisors (63576622).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

57732020 is an equidigital number, since it uses as much as digits as its factorization.

57732020 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3407 (or 1706 counting only the distinct ones).

The product of its (nonzero) digits is 2940, while the sum is 26.

The square root of 57732020 is about 7598.1589875443. The cubic root of 57732020 is about 386.4905840491.

Adding to 57732020 its reverse (2023775), we get a palindrome (59755795).

The spelling of 57732020 in words is "fifty-seven million, seven hundred thirty-two thousand, twenty".