57049345 has 16 divisors (see below), whose sum is σ = 69643152. Its totient is φ = 44857600.

The previous prime is 57049319. The next prime is 57049357. The reversal of 57049345 is 54394075.

It can be written as a sum of positive squares in 8 ways, for example, as 5683456 + 51365889 = 2384^2 + 7167^2 .

It is not a de Polignac number, because 57049345 - 2⁵ = 57049313 is a prime.

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 87039 + ... + 87691.

It is an arithmetic number, because the mean of its divisors is an integer number (4352697).

Almost surely, 2^57049345 is an apocalyptic number.

It is an amenable number.

57049345 is a deficient number, since it is larger than the sum of its proper divisors (12593807).

57049345 is a wasteful number, since it uses less digits than its factorization.

57049345 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 932.

The product of its (nonzero) digits is 75600, while the sum is 37.

The square root of 57049345 is about 7553.1016807667. The cubic root of 57049345 is about 384.9611362356.

The spelling of 57049345 in words is "fifty-seven million, forty-nine thousand, three hundred forty-five".