52331100 has 144 divisors (see below), whose sum is σ = 165989376. Its totient is φ = 12672000.

The previous prime is 52331099. The next prime is 52331113. The reversal of 52331100 is 113325.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (15).

It is a self number, because there is not a number n which added to its sum of digits gives 52331100.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 157935 + ... + 158265.

It is an arithmetic number, because the mean of its divisors is an integer number (1152704).

Almost surely, 2^52331100 is an apocalyptic number.

52331100 is a gapful number since it is divisible by the number (50) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 52331100, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (82994688).

52331100 is an abundant number, since it is smaller than the sum of its proper divisors (113658276).

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

52331100 is a wasteful number, since it uses less digits than its factorization.

52331100 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 396 (or 389 counting only the distinct ones).

The product of its (nonzero) digits is 90, while the sum is 15.

The square root of 52331100 is about 7234.0237765714. The cubic root of 52331100 is about 374.0416417740.

Adding to 52331100 its reverse (113325), we get a palindrome (52444425).

The spelling of 52331100 in words is "fifty-two million, three hundred thirty-one thousand, one hundred".