54421816 has 8 divisors (see below), whose sum is σ = 102040920. Its totient is φ = 27210904.

The previous prime is 54421769. The next prime is 54421823. The reversal of 54421816 is 61812445.

It is a tau number, because it is divible by the number of its divisors (8).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3401356 + ... + 3401371.

It is an arithmetic number, because the mean of its divisors is an integer number (12755115).

Almost surely, 2^54421816 is an apocalyptic number.

It is an amenable number.

54421816 is a deficient number, since it is larger than the sum of its proper divisors (47619104).

54421816 is a wasteful number, since it uses less digits than its factorization.

54421816 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6802733 (or 6802729 counting only the distinct ones).

The product of its digits is 7680, while the sum is 31.

The square root of 54421816 is about 7377.1143409873. The cubic root of 54421816 is about 378.9579390949.

The spelling of 54421816 in words is "fifty-four million, four hundred twenty-one thousand, eight hundred sixteen".