25912225 has 24 divisors (see below), whose sum is σ = 33658560. Its totient is φ = 19763520.

The previous prime is 25912213. The next prime is 25912253. The reversal of 25912225 is 52221952.

It is not a de Polignac number, because 25912225 - 2¹⁹ = 25387937 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 25912193 and 25912202.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 74502 + ... + 74848.

It is an arithmetic number, because the mean of its divisors is an integer number (1402440).

Almost surely, 2^25912225 is an apocalyptic number.

25912225 is a gapful number since it is divisible by the number (25) formed by its first and last digit.

It is an amenable number.

25912225 is a deficient number, since it is larger than the sum of its proper divisors (7746335).

25912225 is a wasteful number, since it uses less digits than its factorization.

25912225 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 489 (or 484 counting only the distinct ones).

The product of its digits is 3600, while the sum is 28.

The square root of 25912225 is about 5090.4051901592. The cubic root of 25912225 is about 295.9158552215.

The spelling of 25912225 in words is "twenty-five million, nine hundred twelve thousand, two hundred twenty-five".