57449555 has 4 divisors (see below), whose sum is σ = 68939472. Its totient is φ = 45959640.

The previous prime is 57449549. The next prime is 57449563. The reversal of 57449555 is 55594475.

It is a happy number.

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

It is a de Polignac number, because none of the positive numbers 2^k-57449555 is a prime.

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 5744951 + ... + 5744960.

It is an arithmetic number, because the mean of its divisors is an integer number (17234868).

Almost surely, 2^57449555 is an apocalyptic number.

57449555 is a deficient number, since it is larger than the sum of its proper divisors (11489917).

57449555 is a wasteful number, since it uses less digits than its factorization.

57449555 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11489916.

The product of its digits is 630000, while the sum is 44.

The square root of 57449555 is about 7579.5484694011. The cubic root of 57449555 is about 385.8592267680.

The spelling of 57449555 in words is "fifty-seven million, four hundred forty-nine thousand, five hundred fifty-five".