54881380 has 36 divisors (see below), whose sum is σ = 116836020. Its totient is φ = 21654400.

The previous prime is 54881357. The next prime is 54881413. The reversal of 54881380 is 8318845.

It can be written as a sum of positive squares in 6 ways, for example, as 3415104 + 51466276 = 1848^2 + 7174^2 .

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 203886 + ... + 204154.

It is an arithmetic number, because the mean of its divisors is an integer number (3245445).

Almost surely, 2^54881380 is an apocalyptic number.

It is an amenable number.

54881380 is an abundant number, since it is smaller than the sum of its proper divisors (61954640).

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

54881380 is a wasteful number, since it uses less digits than its factorization.

54881380 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 480 (or 377 counting only the distinct ones).

The product of its (nonzero) digits is 30720, while the sum is 37.

The square root of 54881380 is about 7408.1968116405. The cubic root of 54881380 is about 380.0216515826.

The spelling of 54881380 in words is "fifty-four million, eight hundred eighty-one thousand, three hundred eighty".