252101232 has 90 divisors (see below), whose sum is σ = 724297392. Its totient is φ = 81819648.

The previous prime is 252101219. The next prime is 252101237. The reversal of 252101232 is 232101252.

252101232 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a Harshad number since it is a multiple of its sum of digits (18).

It is an alternating number because its digits alternate between even and odd.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (252101237) by changing a digit.

It is a polite number, since it can be written in 17 ways as a sum of consecutive naturals, for example, 1306128 + ... + 1306320.

Almost surely, 2^252101232 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 252101232, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (362148696).

252101232 is an abundant number, since it is smaller than the sum of its proper divisors (472196160).

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

252101232 is a wasteful number, since it uses less digits than its factorization.

252101232 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 447 (or 245 counting only the distinct ones).

The product of its (nonzero) digits is 240, while the sum is 18.

The square root of 252101232 is about 15877.6960545288. The cubic root of 252101232 is about 631.7205275054.

Adding to 252101232 its reverse (232101252), we get a palindrome (484202484).

The spelling of 252101232 in words is "two hundred fifty-two million, one hundred one thousand, two hundred thirty-two".