225939925 has 24 divisors (see below), whose sum is σ = 307748160. Its totient is φ = 163785600.

The previous prime is 225939859. The next prime is 225939937. The reversal of 225939925 is 529939522.

It is not a de Polignac number, because 225939925 - 2¹³ = 225931733 is a prime.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 585 + ... + 21265.

It is an arithmetic number, because the mean of its divisors is an integer number (12822840).

Almost surely, 2^225939925 is an apocalyptic number.

225939925 is a gapful number since it is divisible by the number (25) formed by its first and last digit.

It is an amenable number.

225939925 is a deficient number, since it is larger than the sum of its proper divisors (81808235).

225939925 is a wasteful number, since it uses less digits than its factorization.

225939925 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 20733 (or 20728 counting only the distinct ones).

The product of its digits is 437400, while the sum is 46.

The square root of 225939925 is about 15031.2981807960. The cubic root of 225939925 is about 609.0659583095.

The spelling of 225939925 in words is "two hundred twenty-five million, nine hundred thirty-nine thousand, nine hundred twenty-five".