57474139 has 4 divisors (see below), whose sum is σ = 58416400. Its totient is φ = 56531880.

The previous prime is 57474133. The next prime is 57474163. The reversal of 57474139 is 93147475.

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

It is a cyclic number.

It is not a de Polignac number, because 57474139 - 2⁹ = 57473627 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (57474133) 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, 471039 + ... + 471160.

It is an arithmetic number, because the mean of its divisors is an integer number (14604100).

Almost surely, 2^57474139 is an apocalyptic number.

57474139 is a deficient number, since it is larger than the sum of its proper divisors (942261).

57474139 is an equidigital number, since it uses as much as digits as its factorization.

57474139 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 942260.

The product of its digits is 105840, while the sum is 40.

The square root of 57474139 is about 7581.1700284323. The cubic root of 57474139 is about 385.9142582965.

The spelling of 57474139 in words is "fifty-seven million, four hundred seventy-four thousand, one hundred thirty-nine".