25008993 has 20 divisors (see below), whose sum is σ = 37525488. Its totient is φ = 16598520.

The previous prime is 25008961. The next prime is 25009031. The reversal of 25008993 is 39980052.

It is not a de Polignac number, because 25008993 - 2⁵ = 25008961 is a prime.

It is a Smith number, since the sum of its digits (36) coincides with the sum of the digits of its prime factors.

It is not an unprimeable number, because it can be changed into a prime (25008943) by changing a digit.

It is a polite number, since it can be written in 19 ways as a sum of consecutive naturals, for example, 22378 + ... + 23468.

Almost surely, 2^25008993 is an apocalyptic number.

It is an amenable number.

25008993 is a deficient number, since it is larger than the sum of its proper divisors (12516495).

25008993 is a wasteful number, since it uses less digits than its factorization.

25008993 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1386 (or 1377 counting only the distinct ones).

The product of its (nonzero) digits is 19440, while the sum is 36.

The square root of 25008993 is about 5000.8992191405. The cubic root of 25008993 is about 292.4368305401.

The spelling of 25008993 in words is "twenty-five million, eight thousand, nine hundred ninety-three".