252043506 has 48 divisors (see below), whose sum is σ = 641571840. Its totient is φ = 70500960.

The previous prime is 252043501. The next prime is 252043537. The reversal of 252043506 is 605340252.

252043506 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 252043506.

It is not an unprimeable number, because it can be changed into a prime (252043501) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 46386 + ... + 51533.

It is an arithmetic number, because the mean of its divisors is an integer number (13366080).

Almost surely, 2^252043506 is an apocalyptic number.

252043506 is a gapful number since it is divisible by the number (26) formed by its first and last digit.

252043506 is an abundant number, since it is smaller than the sum of its proper divisors (389528334).

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

252043506 is a wasteful number, since it uses less digits than its factorization.

252043506 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 97951 (or 97948 counting only the distinct ones).

The product of its (nonzero) digits is 7200, while the sum is 27.

The square root of 252043506 is about 15875.8781174460. The cubic root of 252043506 is about 631.6723068196.

Adding to 252043506 its reverse (605340252), we get a palindrome (857383758).

The spelling of 252043506 in words is "two hundred fifty-two million, forty-three thousand, five hundred six".