54815020 has 24 divisors (see below), whose sum is σ = 123966864. Its totient is φ = 20239296.

The previous prime is 54815009. The next prime is 54815039. The reversal of 54815020 is 2051845.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 105154 + ... + 105673.

It is an arithmetic number, because the mean of its divisors is an integer number (5165286).

Almost surely, 2^54815020 is an apocalyptic number.

It is an amenable number.

54815020 is an abundant number, since it is smaller than the sum of its proper divisors (69151844).

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

54815020 is a wasteful number, since it uses less digits than its factorization.

54815020 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 210849 (or 210847 counting only the distinct ones).

The product of its (nonzero) digits is 1600, while the sum is 25.

The square root of 54815020 is about 7403.7166342318. The cubic root of 54815020 is about 379.8684216658.

Adding to 54815020 its reverse (2051845), we get a palindrome (56866865).

It can be divided in two parts, 5481 and 5020, that added together give a palindrome (10501).

The spelling of 54815020 in words is "fifty-four million, eight hundred fifteen thousand, twenty".