57145449 has 8 divisors (see below), whose sum is σ = 80676000. Its totient is φ = 35855936.

The previous prime is 57145447. The next prime is 57145463. The reversal of 57145449 is 94454175.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 57145449 - 2¹ = 57145447 is a prime.

It is not an unprimeable number, because it can be changed into a prime (57145447) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 560199 + ... + 560300.

It is an arithmetic number, because the mean of its divisors is an integer number (10084500).

Almost surely, 2^57145449 is an apocalyptic number.

It is an amenable number.

57145449 is a deficient number, since it is larger than the sum of its proper divisors (23530551).

57145449 is a wasteful number, since it uses less digits than its factorization.

57145449 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1120519.

The product of its digits is 100800, while the sum is 39.

The square root of 57145449 is about 7559.4608934765. The cubic root of 57145449 is about 385.1771804927.

The spelling of 57145449 in words is "fifty-seven million, one hundred forty-five thousand, four hundred forty-nine".