57474309 has 16 divisors (see below), whose sum is σ = 80750592. Its totient is φ = 36289968.

The previous prime is 57474257. The next prime is 57474323. The reversal of 57474309 is 90347475.

It is not a de Polignac number, because 57474309 - 2⁷ = 57474181 is a prime.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (57474379) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 3064 + ... + 11150.

It is an arithmetic number, because the mean of its divisors is an integer number (5046912).

Almost surely, 2^57474309 is an apocalyptic number.

It is an amenable number.

57474309 is a deficient number, since it is larger than the sum of its proper divisors (23276283).

57474309 is a wasteful number, since it uses less digits than its factorization.

57474309 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8216.

The product of its (nonzero) digits is 105840, while the sum is 39.

The square root of 57474309 is about 7581.1812404137. The cubic root of 57474309 is about 385.9146387885.

The spelling of 57474309 in words is "fifty-seven million, four hundred seventy-four thousand, three hundred nine".