52632320 has 72 divisors (see below), whose sum is σ = 135811536. Its totient is φ = 19427328.

The previous prime is 52632317. The next prime is 52632367. The reversal of 52632320 is 2323625.

It is a happy number.

It is a super-2 number, since 2×52632320² = 5540322217164800, which contains 22 as substring.

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, 15059 + ... + 18221.

Almost surely, 2^52632320 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 52632320, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (67905768).

52632320 is an abundant number, since it is smaller than the sum of its proper divisors (83179216).

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

52632320 is a wasteful number, since it uses less digits than its factorization.

52632320 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3197 (or 3183 counting only the distinct ones).

The product of its (nonzero) digits is 2160, while the sum is 23.

The square root of 52632320 is about 7254.8135744483. The cubic root of 52632320 is about 374.7579356317.

Adding to 52632320 its reverse (2323625), we get a palindrome (54955945).

The spelling of 52632320 in words is "fifty-two million, six hundred thirty-two thousand, three hundred twenty".