25249968 has 50 divisors (see below), whose sum is σ = 73084484. Its totient is φ = 8416224.

The previous prime is 25249957. The next prime is 25249969. The reversal of 25249968 is 86994252.

It is a Smith number, since the sum of its digits (45) 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 (25249969) by changing a digit.

It is a polite number, since it can be written in 9 ways as a sum of consecutive naturals, for example, 8446 + ... + 11037.

Almost surely, 2^25249968 is an apocalyptic number.

It is an amenable number.

25249968 is an abundant number, since it is smaller than the sum of its proper divisors (47834516).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

25249968 is a wasteful number, since it uses less digits than its factorization.

25249968 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 19503 (or 19488 counting only the distinct ones).

The product of its digits is 311040, while the sum is 45.

The square root of 25249968 is about 5024.9346264404. The cubic root of 25249968 is about 293.3730914888.

The spelling of 25249968 in words is "twenty-five million, two hundred forty-nine thousand, nine hundred sixty-eight".