54286820 has 24 divisors (see below), whose sum is σ = 130288704. Its totient is φ = 18612576.

The previous prime is 54286801. The next prime is 54286849. The reversal of 54286820 is 2868245.

It is a Harshad number since it is a multiple of its sum of digits (35).

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, 193742 + ... + 194021.

It is an arithmetic number, because the mean of its divisors is an integer number (5428696).

Almost surely, 2^54286820 is an apocalyptic number.

It is an amenable number.

54286820 is an abundant number, since it is smaller than the sum of its proper divisors (76001884).

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

54286820 is a wasteful number, since it uses less digits than its factorization.

54286820 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 387779 (or 387777 counting only the distinct ones).

The product of its (nonzero) digits is 30720, while the sum is 35.

The square root of 54286820 is about 7367.9590118295. The cubic root of 54286820 is about 378.6443383619.

The spelling of 54286820 in words is "fifty-four million, two hundred eighty-six thousand, eight hundred twenty".