57455989 has 16 divisors (see below), whose sum is σ = 62208000. Its totient is φ = 52940160.

The previous prime is 57455987. The next prime is 57455999. The reversal of 57455989 is 98955475.

It is a cyclic number.

It is not a de Polignac number, because 57455989 - 2¹ = 57455987 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (57455987) 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, 70617 + ... + 71425.

It is an arithmetic number, because the mean of its divisors is an integer number (3888000).

Almost surely, 2^57455989 is an apocalyptic number.

It is an amenable number.

57455989 is a deficient number, since it is larger than the sum of its proper divisors (4752011).

57455989 is a wasteful number, since it uses less digits than its factorization.

57455989 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 948.

The product of its digits is 2268000, while the sum is 52.

The square root of 57455989 is about 7579.9728891336. The cubic root of 57455989 is about 385.8736308575.

The spelling of 57455989 in words is "fifty-seven million, four hundred fifty-five thousand, nine hundred eighty-nine".