225250012525 has 6 divisors (see below), whose sum is σ = 279310015562. Its totient is φ = 180200010000.

The previous prime is 225250012517. The next prime is 225250012531. The reversal of 225250012525 is 525210052522.

It can be written as a sum of positive squares in 3 ways, for example, as 41300807076 + 183949205449 = 203226^2 + 428893^2 .

It is not a de Polignac number, because 225250012525 - 2³ = 225250012517 is a prime.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 4505000226 + ... + 4505000275.

Almost surely, 2^225250012525 is an apocalyptic number.

225250012525 is a gapful number since it is divisible by the number (25) formed by its first and last digit.

It is an amenable number.

225250012525 is a deficient number, since it is larger than the sum of its proper divisors (54060003037).

225250012525 is an equidigital number, since it uses as much as digits as its factorization.

225250012525 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9010000511 (or 9010000506 counting only the distinct ones).

The product of its (nonzero) digits is 20000, while the sum is 31.

It can be divided in two parts, 2252500 and 12525, that added together give a square (2265025 = 1505²).

The spelling of 225250012525 in words is "two hundred twenty-five billion, two hundred fifty million, twelve thousand, five hundred twenty-five".