54252020 has 24 divisors (see below), whose sum is σ = 116709768. Its totient is φ = 21171200.

The previous prime is 54252017. The next prime is 54252031. The reversal of 54252020 is 2025245.

It can be written as a sum of positive squares in 4 ways, for example, as 5866084 + 48385936 = 2422^2 + 6956^2 .

It is a Harshad number since it is a multiple of its sum of digits (20).

It is a junction number, because it is equal to n+sod(n) for n = 54251983 and 54252001.

It is a congruent number.

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, 32261 + ... + 33900.

It is an arithmetic number, because the mean of its divisors is an integer number (4862907).

Almost surely, 2^54252020 is an apocalyptic number.

It is an amenable number.

54252020 is an abundant number, since it is smaller than the sum of its proper divisors (62457748).

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

54252020 is a wasteful number, since it uses less digits than its factorization.

54252020 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 66211 (or 66209 counting only the distinct ones).

The product of its (nonzero) digits is 800, while the sum is 20.

The square root of 54252020 is about 7365.5970565868. The cubic root of 54252020 is about 378.5634123987.

Adding to 54252020 its reverse (2025245), we get a palindrome (56277265).

The spelling of 54252020 in words is "fifty-four million, two hundred fifty-two thousand, twenty".