252321225 has 72 divisors (see below), whose sum is σ = 478710432. Its totient is φ = 116812800.

The previous prime is 252321211. The next prime is 252321227. The reversal of 252321225 is 522123252.

252321225 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 252321225 - 2⁶ = 252321161 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 252321195 and 252321204.

It is not an unprimeable number, because it can be changed into a prime (252321227) by changing a digit.

It is a polite number, since it can be written in 71 ways as a sum of consecutive naturals, for example, 214890 + ... + 216060.

It is an arithmetic number, because the mean of its divisors is an integer number (6648756).

Almost surely, 2^252321225 is an apocalyptic number.

252321225 is a gapful number since it is divisible by the number (25) formed by its first and last digit.

It is an amenable number.

252321225 is a deficient number, since it is larger than the sum of its proper divisors (226389207).

252321225 is a wasteful number, since it uses less digits than its factorization.

252321225 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1227 (or 1209 counting only the distinct ones).

The product of its digits is 2400, while the sum is 24.

The square root of 252321225 is about 15884.6222806839. The cubic root of 252321225 is about 631.9042284309.

Adding to 252321225 its reverse (522123252), we get a palindrome (774444477).

The spelling of 252321225 in words is "two hundred fifty-two million, three hundred twenty-one thousand, two hundred twenty-five".