57410021 has 4 divisors (see below), whose sum is σ = 58101792. Its totient is φ = 56718252.

The previous prime is 57409997. The next prime is 57410027. The reversal of 57410021 is 12001475.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 57410021 - 2²² = 53215717 is a prime.

It is a super-2 number, since 2×57410021² = 6591821022440882, which contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 57409975 and 57410002.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (57410027) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 345761 + ... + 345926.

It is an arithmetic number, because the mean of its divisors is an integer number (14525448).

Almost surely, 2^57410021 is an apocalyptic number.

It is an amenable number.

57410021 is a deficient number, since it is larger than the sum of its proper divisors (691771).

57410021 is an equidigital number, since it uses as much as digits as its factorization.

57410021 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 691770.

The product of its (nonzero) digits is 280, while the sum is 20.

The square root of 57410021 is about 7576.9400815897. The cubic root of 57410021 is about 385.7706965832.

Adding to 57410021 its reverse (12001475), we get a palindrome (69411496).

The spelling of 57410021 in words is "fifty-seven million, four hundred ten thousand, twenty-one".