57421297 has 4 divisors (see below), whose sum is σ = 58756720. Its totient is φ = 56085876.

The previous prime is 57421277. The next prime is 57421303. The reversal of 57421297 is 79212475.

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 57421297 - 2¹¹ = 57419249 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (57421237) 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, 667647 + ... + 667732.

It is an arithmetic number, because the mean of its divisors is an integer number (14689180).

Almost surely, 2^57421297 is an apocalyptic number.

It is an amenable number.

57421297 is a deficient number, since it is larger than the sum of its proper divisors (1335423).

57421297 is a wasteful number, since it uses less digits than its factorization.

57421297 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1335422.

The product of its digits is 35280, while the sum is 37.

The square root of 57421297 is about 7577.6841449087. The cubic root of 57421297 is about 385.7959515564.

The spelling of 57421297 in words is "fifty-seven million, four hundred twenty-one thousand, two hundred ninety-seven".