52090720 has 96 divisors (see below), whose sum is σ = 142230816. Its totient is φ = 17817600.

The previous prime is 52090697. The next prime is 52090729. The reversal of 52090720 is 2709025.

52090720 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a super-2 number, since 2×52090720² = 5426886220236800, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (52090729) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 29050 + ... + 30790.

It is an arithmetic number, because the mean of its divisors is an integer number (1481571).

Almost surely, 2^52090720 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 52090720, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (71115408).

52090720 is an abundant number, since it is smaller than the sum of its proper divisors (90140096).

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

52090720 is a wasteful number, since it uses less digits than its factorization.

52090720 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1784 (or 1776 counting only the distinct ones).

The product of its (nonzero) digits is 1260, while the sum is 25.

The square root of 52090720 is about 7217.3901100051. The cubic root of 52090720 is about 373.4680494548.

Adding to 52090720 its reverse (2709025), we get a palindrome (54799745).

The spelling of 52090720 in words is "fifty-two million, ninety thousand, seven hundred twenty".