54491780 has 24 divisors (see below), whose sum is σ = 130780608. Its totient is φ = 18682848.

The previous prime is 54491779. The next prime is 54491803. The reversal of 54491780 is 8719445.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 194474 + ... + 194753.

It is an arithmetic number, because the mean of its divisors is an integer number (5449192).

Almost surely, 2^54491780 is an apocalyptic number.

It is an amenable number.

54491780 is an abundant number, since it is smaller than the sum of its proper divisors (76288828).

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

54491780 is a wasteful number, since it uses less digits than its factorization.

54491780 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 389243 (or 389241 counting only the distinct ones).

The product of its (nonzero) digits is 40320, while the sum is 38.

The square root of 54491780 is about 7381.8547804735. The cubic root of 54491780 is about 379.1202640688.

The spelling of 54491780 in words is "fifty-four million, four hundred ninety-one thousand, seven hundred eighty".