52312530 has 32 divisors (see below), whose sum is σ = 127275264. Its totient is φ = 13758336.

The previous prime is 52312517. The next prime is 52312573. The reversal of 52312530 is 3521325.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 52312497 and 52312506.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 9754 + ... + 14133.

It is an arithmetic number, because the mean of its divisors is an integer number (3977352).

Almost surely, 2^52312530 is an apocalyptic number.

52312530 is an abundant number, since it is smaller than the sum of its proper divisors (74962734).

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

52312530 is a wasteful number, since it uses less digits than its factorization.

52312530 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 23970.

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

The square root of 52312530 is about 7232.7401446478. The cubic root of 52312530 is about 373.9973929108.

Adding to 52312530 its reverse (3521325), we get a palindrome (55833855).

The spelling of 52312530 in words is "fifty-two million, three hundred twelve thousand, five hundred thirty".