57381479 has 4 divisors (see below), whose sum is σ = 58715976. Its totient is φ = 56046984.

The previous prime is 57381461. The next prime is 57381559. The reversal of 57381479 is 97418375.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-57381479 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 (57381179) 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, 667184 + ... + 667269.

It is an arithmetic number, because the mean of its divisors is an integer number (14678994).

Almost surely, 2^57381479 is an apocalyptic number.

57381479 is a deficient number, since it is larger than the sum of its proper divisors (1334497).

57381479 is a wasteful number, since it uses less digits than its factorization.

57381479 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1334496.

The product of its digits is 211680, while the sum is 44.

The square root of 57381479 is about 7575.0563694272. The cubic root of 57381479 is about 385.7067559899.

The spelling of 57381479 in words is "fifty-seven million, three hundred eighty-one thousand, four hundred seventy-nine".