54478490 has 64 divisors (see below), whose sum is σ = 113778432. Its totient is φ = 18585600.

The previous prime is 54478483. The next prime is 54478493. The reversal of 54478490 is 9487445.

It is not an unprimeable number, because it can be changed into a prime (54478493) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 154154 + ... + 154506.

It is an arithmetic number, because the mean of its divisors is an integer number (1777788).

Almost surely, 2^54478490 is an apocalyptic number.

54478490 is an abundant number, since it is smaller than the sum of its proper divisors (59299942).

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

54478490 is a wasteful number, since it uses less digits than its factorization.

54478490 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 455.

The product of its (nonzero) digits is 161280, while the sum is 41.

The square root of 54478490 is about 7380.9545453146. The cubic root of 54478490 is about 379.0894403496.

The spelling of 54478490 in words is "fifty-four million, four hundred seventy-eight thousand, four hundred ninety".