52512330 has 64 divisors (see below), whose sum is σ = 140434560. Its totient is φ = 12477696.

The previous prime is 52512329. The next prime is 52512353. The reversal of 52512330 is 3321525.

It is a junction number, because it is equal to n+sod(n) for n = 52512297 and 52512306.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 8989 + ... + 13631.

It is an arithmetic number, because the mean of its divisors is an integer number (2194290).

Almost surely, 2^52512330 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 52512330, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (70217280).

52512330 is an abundant number, since it is smaller than the sum of its proper divisors (87922230).

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

52512330 is a wasteful number, since it uses less digits than its factorization.

52512330 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4695.

The product of its (nonzero) digits is 900, while the sum is 21.

The square root of 52512330 is about 7246.5391739782. The cubic root of 52512330 is about 374.4729306526.

Adding to 52512330 its reverse (3321525), we get a palindrome (55833855).

The spelling of 52512330 in words is "fifty-two million, five hundred twelve thousand, three hundred thirty".