654981560 has 32 divisors (see below), whose sum is σ = 1509656400. Its totient is φ = 255601920.

The previous prime is 654981553. The next prime is 654981563. The reversal of 654981560 is 65189456.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (654981563) 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, 198050 + ... + 201329.

Almost surely, 2^654981560 is an apocalyptic number.

It is an amenable number.

654981560 is an abundant number, since it is smaller than the sum of its proper divisors (854674840).

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

654981560 is a wasteful number, since it uses less digits than its factorization.

654981560 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 399431 (or 399427 counting only the distinct ones).

The product of its (nonzero) digits is 259200, while the sum is 44.

The square root of 654981560 is about 25592.6075263932. The cubic root of 654981560 is about 868.4464104232.

The spelling of 654981560 in words is "six hundred fifty-four million, nine hundred eighty-one thousand, five hundred sixty".