225152532 has 72 divisors (see below), whose sum is σ = 622544832. Its totient is φ = 68044800.

The previous prime is 225152509. The next prime is 225152537. The reversal of 225152532 is 235251522.

225152532 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a super-2 number, since 2×225152532² = 101387325332022048, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 225152496 and 225152505.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (225152537) 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, 253393 + ... + 254279.

It is an arithmetic number, because the mean of its divisors is an integer number (8646456).

Almost surely, 2^225152532 is an apocalyptic number.

225152532 is a gapful number since it is divisible by the number (22) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 225152532, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (311272416).

225152532 is an abundant number, since it is smaller than the sum of its proper divisors (397392300).

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

225152532 is a wasteful number, since it uses less digits than its factorization.

225152532 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1549 (or 1544 counting only the distinct ones).

The product of its digits is 6000, while the sum is 27.

The square root of 225152532 is about 15005.0835385878. The cubic root of 225152532 is about 608.3576100568.

The spelling of 225152532 in words is "two hundred twenty-five million, one hundred fifty-two thousand, five hundred thirty-two".