654271056 has 30 divisors (see below), whose sum is σ = 1831050650. Its totient is φ = 218090304.

The previous prime is 654271039. The next prime is 654271063. The reversal of 654271056 is 650172456.

It is a happy number.

654271056 is a `hidden beast` number, since 6 + 542 + 7 + 105 + 6 = 666.

It can be written as a sum of positive squares in only one way, i.e., 482241600 + 172029456 = 21960^2 + 13116^2 .

It is a super-2 number, since 2×654271056² = 856141229438710272, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a self number, because there is not a number n which added to its sum of digits gives 654271056.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 2271631 + ... + 2271918.

Almost surely, 2^654271056 is an apocalyptic number.

It is an amenable number.

654271056 is an abundant number, since it is smaller than the sum of its proper divisors (1176779594).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

654271056 is a wasteful number, since it uses less digits than its factorization.

654271056 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4543563 (or 4543554 counting only the distinct ones).

The product of its (nonzero) digits is 50400, while the sum is 36.

The square root of 654271056 is about 25578.7227202611. The cubic root of 654271056 is about 868.1322754235.

The spelling of 654271056 in words is "six hundred fifty-four million, two hundred seventy-one thousand, fifty-six".