52432020 has 72 divisors (see below), whose sum is σ = 167425440. Its totient is φ = 13245120.

The previous prime is 52431991. The next prime is 52432021. The reversal of 52432020 is 2023425.

It is a Harshad number since it is a multiple of its sum of digits (18).

It is a junction number, because it is equal to n+sod(n) for n = 52431984 and 52432002.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (52432021) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 4246 + ... + 11085.

Almost surely, 2^52432020 is an apocalyptic number.

It is an amenable number.

52432020 is an abundant number, since it is smaller than the sum of its proper divisors (114993420).

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

52432020 is a wasteful number, since it uses less digits than its factorization.

52432020 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 15365 (or 15360 counting only the distinct ones).

The product of its (nonzero) digits is 480, while the sum is 18.

The square root of 52432020 is about 7240.9957878734. The cubic root of 52432020 is about 374.2819325554.

Adding to 52432020 its reverse (2023425), we get a palindrome (54455445).

The spelling of 52432020 in words is "fifty-two million, four hundred thirty-two thousand, twenty".