252112225205 has 4 divisors (see below), whose sum is σ = 302534670252. Its totient is φ = 201689780160.

The previous prime is 252112225201. The next prime is 252112225223. The reversal of 252112225205 is 502522211252.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 30678923716 + 221433301489 = 175154^2 + 470567^2 .

It is not a de Polignac number, because 252112225205 - 2² = 252112225201 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (252112225201) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 25211222516 + ... + 25211222525.

It is an arithmetic number, because the mean of its divisors is an integer number (75633667563).

Almost surely, 2^252112225205 is an apocalyptic number.

It is an amenable number.

252112225205 is a deficient number, since it is larger than the sum of its proper divisors (50422445047).

252112225205 is an equidigital number, since it uses as much as digits as its factorization.

252112225205 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 50422445046.

The product of its (nonzero) digits is 8000, while the sum is 29.

Adding to 252112225205 its reverse (502522211252), we get a palindrome (754634436457).

The spelling of 252112225205 in words is "two hundred fifty-two billion, one hundred twelve million, two hundred twenty-five thousand, two hundred five".