54995478 has 8 divisors (see below), whose sum is σ = 109990968. Its totient is φ = 18331824.

The previous prime is 54995429. The next prime is 54995491. The reversal of 54995478 is 87459945.

It is a sphenic number, since it is the product of 3 distinct primes.

54995478 is an admirable number.

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 54995478.

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, 4582951 + ... + 4582962.

It is an arithmetic number, because the mean of its divisors is an integer number (13748871).

Almost surely, 2^54995478 is an apocalyptic number.

54995478 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

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

54995478 is a wasteful number, since it uses less digits than its factorization.

54995478 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9165918.

The product of its digits is 1814400, while the sum is 51.

The square root of 54995478 is about 7415.8936076511. The cubic root of 54995478 is about 380.2848233959.

The spelling of 54995478 in words is "fifty-four million, nine hundred ninety-five thousand, four hundred seventy-eight".