54481555 has 8 divisors (see below), whose sum is σ = 65811744. Its totient is φ = 43296000.

The previous prime is 54481529. The next prime is 54481561. The reversal of 54481555 is 55518445.

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

It is a de Polignac number, because none of the positive numbers 2^k-54481555 is a prime.

It is a Duffinian number.

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, 35326 + ... + 36835.

It is an arithmetic number, because the mean of its divisors is an integer number (8226468).

Almost surely, 2^54481555 is an apocalyptic number.

54481555 is a deficient number, since it is larger than the sum of its proper divisors (11330189).

54481555 is a wasteful number, since it uses less digits than its factorization.

54481555 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 72317.

The product of its digits is 80000, while the sum is 37.

The square root of 54481555 is about 7381.1621713657. The cubic root of 54481555 is about 379.0965495000.

The spelling of 54481555 in words is "fifty-four million, four hundred eighty-one thousand, five hundred fifty-five".