25225999 has 8 divisors (see below), whose sum is σ = 25567488. Its totient is φ = 24886680.

The previous prime is 25225997. The next prime is 25226017. The reversal of 25225999 is 99952252.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 25225999 - 2¹ = 25225997 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (25225997) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 45844 + ... + 46390.

It is an arithmetic number, because the mean of its divisors is an integer number (3195936).

Almost surely, 2^25225999 is an apocalyptic number.

25225999 is a deficient number, since it is larger than the sum of its proper divisors (341489).

25225999 is a wasteful number, since it uses less digits than its factorization.

25225999 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1085.

The product of its digits is 145800, while the sum is 43.

The square root of 25225999 is about 5022.5490540163. The cubic root of 25225999 is about 293.2802321521.

The spelling of 25225999 in words is "twenty-five million, two hundred twenty-five thousand, nine hundred ninety-nine".