252423225 has 36 divisors (see below), whose sum is σ = 478720476. Its totient is φ = 126704640.

The previous prime is 252423217. The next prime is 252423251. The reversal of 252423225 is 522324252.

It can be written as a sum of positive squares in 6 ways, for example, as 4549689 + 247873536 = 2133^2 + 15744^2 .

It is not a de Polignac number, because 252423225 - 2³ = 252423217 is a prime.

It is a Curzon number.

It is an unprimeable number.

It is a polite number, since it can be written in 35 ways as a sum of consecutive naturals, for example, 29172 + ... + 36821.

It is an arithmetic number, because the mean of its divisors is an integer number (13297791).

Almost surely, 2^252423225 is an apocalyptic number.

252423225 is a gapful number since it is divisible by the number (25) formed by its first and last digit.

It is an amenable number.

252423225 is a deficient number, since it is larger than the sum of its proper divisors (226297251).

252423225 is a wasteful number, since it uses less digits than its factorization.

252423225 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 66026 (or 66018 counting only the distinct ones).

The product of its digits is 9600, while the sum is 27.

The square root of 252423225 is about 15887.8326086348. The cubic root of 252423225 is about 631.9893653407.

Adding to 252423225 its reverse (522324252), we get a palindrome (774747477).

The spelling of 252423225 in words is "two hundred fifty-two million, four hundred twenty-three thousand, two hundred twenty-five".