654459057 has 24 divisors (see below), whose sum is σ = 1098094400. Its totient is φ = 367843680.

The previous prime is 654459041. The next prime is 654459059. The reversal of 654459057 is 750954456.

654459057 is a `hidden beast` number, since 6 + 5 + 4 + 4 + 590 + 57 = 666.

It is not a de Polignac number, because 654459057 - 2⁴ = 654459041 is a prime.

It is a hoax number, since the sum of its digits (45) coincides with the sum of the digits of its distinct prime factors.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (654459059) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 81307 + ... + 88992.

Almost surely, 2^654459057 is an apocalyptic number.

It is an amenable number.

654459057 is a deficient number, since it is larger than the sum of its proper divisors (443635343).

654459057 is a wasteful number, since it uses less digits than its factorization.

654459057 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 170373 (or 170370 counting only the distinct ones).

The product of its (nonzero) digits is 756000, while the sum is 45.

The square root of 654459057 is about 25582.3974052472. The cubic root of 654459057 is about 868.2154183882.

The spelling of 654459057 in words is "six hundred fifty-four million, four hundred fifty-nine thousand, fifty-seven".