57376421 has 4 divisors (see below), whose sum is σ = 59871072. Its totient is φ = 54881772.

The previous prime is 57376399. The next prime is 57376439. The reversal of 57376421 is 12467375.

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 not a de Polignac number, because 57376421 - 2¹⁰ = 57375397 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (57376621) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1247291 + ... + 1247336.

It is an arithmetic number, because the mean of its divisors is an integer number (14967768).

Almost surely, 2^57376421 is an apocalyptic number.

It is an amenable number.

57376421 is a deficient number, since it is larger than the sum of its proper divisors (2494651).

57376421 is a wasteful number, since it uses less digits than its factorization.

57376421 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2494650.

The product of its digits is 35280, while the sum is 35.

The square root of 57376421 is about 7574.7225031680. The cubic root of 57376421 is about 385.6954227042.

The spelling of 57376421 in words is "fifty-seven million, three hundred seventy-six thousand, four hundred twenty-one".