25009996 has 24 divisors (see below), whose sum is σ = 48121920. Its totient is φ = 11278800.

The previous prime is 25009991. The next prime is 25010003. The reversal of 25009996 is 69990052.

It is not an unprimeable number, because it can be changed into a prime (25009991) 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, 3595 + ... + 7933.

It is an arithmetic number, because the mean of its divisors is an integer number (2005080).

Almost surely, 2^25009996 is an apocalyptic number.

It is an amenable number.

25009996 is a deficient number, since it is larger than the sum of its proper divisors (23111924).

25009996 is a wasteful number, since it uses less digits than its factorization.

25009996 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4485 (or 4483 counting only the distinct ones).

The product of its (nonzero) digits is 43740, while the sum is 40.

The square root of 25009996 is about 5000.9995001000. Note that the first 3 decimals coincide. The cubic root of 25009996 is about 292.4407399368.

The spelling of 25009996 in words is "twenty-five million, nine thousand, nine hundred ninety-six".