252106520 has 16 divisors (see below), whose sum is σ = 567239760. Its totient is φ = 100842592.

The previous prime is 252106511. The next prime is 252106579. The reversal of 252106520 is 25601252.

252106520 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3151292 + ... + 3151371.

It is an arithmetic number, because the mean of its divisors is an integer number (35452485).

Almost surely, 2^252106520 is an apocalyptic number.

252106520 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

252106520 is an abundant number, since it is smaller than the sum of its proper divisors (315133240).

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

252106520 is a wasteful number, since it uses less digits than its factorization.

252106520 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6302674 (or 6302670 counting only the distinct ones).

The product of its (nonzero) digits is 1200, while the sum is 23.

The square root of 252106520 is about 15877.8625765561. The cubic root of 252106520 is about 631.7249444015.

Adding to 252106520 its reverse (25601252), we get a palindrome (277707772).

The spelling of 252106520 in words is "two hundred fifty-two million, one hundred six thousand, five hundred twenty".