54511812 has 48 divisors (see below), whose sum is σ = 143337600. Its totient is φ = 17912160.

The previous prime is 54511789. The next prime is 54511861. The reversal of 54511812 is 21811545.

54511812 is a `hidden beast` number, since 545 + 118 + 1 + 2 = 666.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 4114 + ... + 11222.

It is an arithmetic number, because the mean of its divisors is an integer number (2986200).

Almost surely, 2^54511812 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 54511812, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (71668800).

54511812 is an abundant number, since it is smaller than the sum of its proper divisors (88825788).

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

54511812 is a wasteful number, since it uses less digits than its factorization.

54511812 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7193 (or 7185 counting only the distinct ones).

The product of its digits is 1600, while the sum is 27.

The square root of 54511812 is about 7383.2114963612. The cubic root of 54511812 is about 379.1667151525.

The spelling of 54511812 in words is "fifty-four million, five hundred eleven thousand, eight hundred twelve".