54081816 has 16 divisors (see below), whose sum is σ = 135204600. Its totient is φ = 18027264.

The previous prime is 54081793. The next prime is 54081857. The reversal of 54081816 is 61818045.

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, 1126681 + ... + 1126728.

Almost surely, 2^54081816 is an apocalyptic number.

It is an amenable number.

54081816 is an abundant number, since it is smaller than the sum of its proper divisors (81122784).

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

54081816 is a wasteful number, since it uses less digits than its factorization.

54081816 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2253418 (or 2253414 counting only the distinct ones).

The product of its (nonzero) digits is 7680, while the sum is 33.

The square root of 54081816 is about 7354.0339950261. The cubic root of 54081816 is about 378.1671106802.

The spelling of 54081816 in words is "fifty-four million, eighty-one thousand, eight hundred sixteen".