252131530 has 16 divisors (see below), whose sum is σ = 518670720. Its totient is φ = 86445072.

The previous prime is 252131513. The next prime is 252131599. The reversal of 252131530 is 35131252.

252131530 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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, 1800870 + ... + 1801009.

It is an arithmetic number, because the mean of its divisors is an integer number (32416920).

Almost surely, 2^252131530 is an apocalyptic number.

252131530 is an abundant number, since it is smaller than the sum of its proper divisors (266539190).

252131530 is a wasteful number, since it uses less digits than its factorization.

252131530 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3601893.

The product of its (nonzero) digits is 900, while the sum is 22.

The square root of 252131530 is about 15878.6501315446. The cubic root of 252131530 is about 631.7458336119.

Adding to 252131530 its reverse (35131252), we get a palindrome (287262782).

The spelling of 252131530 in words is "two hundred fifty-two million, one hundred thirty-one thousand, five hundred thirty".