225040025 has 12 divisors (see below), whose sum is σ = 318914112. Its totient is φ = 154313040.

The previous prime is 225040007. The next prime is 225040037. The reversal of 225040025 is 520040522.

It is not a de Polignac number, because 225040025 - 2¹² = 225035929 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 225039979 and 225040006.

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, 642797 + ... + 643146.

It is an arithmetic number, because the mean of its divisors is an integer number (26576176).

Almost surely, 2^225040025 is an apocalyptic number.

225040025 is a gapful number since it is divisible by the number (25) formed by its first and last digit.

It is an amenable number.

225040025 is a deficient number, since it is larger than the sum of its proper divisors (93874087).

225040025 is a wasteful number, since it uses less digits than its factorization.

225040025 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1285960 (or 1285955 counting only the distinct ones).

The product of its (nonzero) digits is 800, while the sum is 20.

The square root of 225040025 is about 15001.3341073386. The cubic root of 225040025 is about 608.2562626242.

Adding to 225040025 its reverse (520040522), we get a palindrome (745080547).

The spelling of 225040025 in words is "two hundred twenty-five million, forty thousand, twenty-five".