54981560 has 16 divisors (see below), whose sum is σ = 123708600. Its totient is φ = 21992608.

The previous prime is 54981541. The next prime is 54981581. The reversal of 54981560 is 6518945.

It is a congruent 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, 687230 + ... + 687309.

Almost surely, 2^54981560 is an apocalyptic number.

It is an amenable number.

54981560 is an abundant number, since it is smaller than the sum of its proper divisors (68727040).

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

54981560 is a wasteful number, since it uses less digits than its factorization.

54981560 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1374550 (or 1374546 counting only the distinct ones).

The product of its (nonzero) digits is 43200, while the sum is 38.

The square root of 54981560 is about 7414.9551583270. The cubic root of 54981560 is about 380.2527404507.

The spelling of 54981560 in words is "fifty-four million, nine hundred eighty-one thousand, five hundred sixty".