225929425 has 12 divisors (see below), whose sum is σ = 282929436. Its totient is φ = 178952000.

The previous prime is 225929413. The next prime is 225929447. The reversal of 225929425 is 524929522.

It can be written as a sum of positive squares in 6 ways, for example, as 11716929 + 214212496 = 3423^2 + 14636^2 .

It is not a de Polignac number, because 225929425 - 2¹³ = 225921233 is a prime.

It is a Duffinian number.

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, 42214 + ... + 47263.

It is an arithmetic number, because the mean of its divisors is an integer number (23577453).

Almost surely, 2^225929425 is an apocalyptic number.

225929425 is a gapful number since it is divisible by the number (25) formed by its first and last digit.

It is an amenable number.

225929425 is a deficient number, since it is larger than the sum of its proper divisors (57000011).

225929425 is a wasteful number, since it uses less digits than its factorization.

225929425 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 89588 (or 89583 counting only the distinct ones).

The product of its digits is 129600, while the sum is 40.

The square root of 225929425 is about 15030.9489055083. The cubic root of 225929425 is about 609.0565232179.

It can be divided in two parts, 2259 and 29425, that added together give a square (31684 = 178²).

The spelling of 225929425 in words is "two hundred twenty-five million, nine hundred twenty-nine thousand, four hundred twenty-five".