25197950 has 12 divisors (see below), whose sum is σ = 46868280. Its totient is φ = 10079160.

The previous prime is 25197937. The next prime is 25197959. The reversal of 25197950 is 5979152.

It is a hoax number, since the sum of its digits (38) coincides with the sum of the digits of its distinct prime factors.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (25197959) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 251930 + ... + 252029.

It is an arithmetic number, because the mean of its divisors is an integer number (3905690).

Almost surely, 2^25197950 is an apocalyptic number.

25197950 is a deficient number, since it is larger than the sum of its proper divisors (21670330).

25197950 is a wasteful number, since it uses less digits than its factorization.

25197950 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 503971 (or 503966 counting only the distinct ones).

The product of its (nonzero) digits is 28350, while the sum is 38.

The square root of 25197950 is about 5019.7559701643. The cubic root of 25197950 is about 293.1714915884.

The spelling of 25197950 in words is "twenty-five million, one hundred ninety-seven thousand, nine hundred fifty".