252120252225 has 12 divisors (see below), whose sum is σ = 416838817136. Its totient is φ = 134464134480.

The previous prime is 252120252193. The next prime is 252120252239. The reversal of 252120252225 is 522252021252.

It is not a de Polignac number, because 252120252225 - 2⁵ = 252120252193 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 252120252192 and 252120252201.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 1680801607 + ... + 1680801756.

Almost surely, 2^252120252225 is an apocalyptic number.

252120252225 is a gapful number since it is divisible by the number (25) formed by its first and last digit.

It is an amenable number.

252120252225 is a deficient number, since it is larger than the sum of its proper divisors (164718564911).

252120252225 is a wasteful number, since it uses less digits than its factorization.

252120252225 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3361603376 (or 3361603371 counting only the distinct ones).

The product of its (nonzero) digits is 16000, while the sum is 30.

Adding to 252120252225 its reverse (522252021252), we get a palindrome (774372273477).

The spelling of 252120252225 in words is "two hundred fifty-two billion, one hundred twenty million, two hundred fifty-two thousand, two hundred twenty-five".