25397950 has 24 divisors (see below), whose sum is σ = 48342888. Its totient is φ = 9922080.

The previous prime is 25397923. The next prime is 25397951. The reversal of 25397950 is 5979352.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (25397951) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 3757 + ... + 8056.

It is an arithmetic number, because the mean of its divisors is an integer number (2014287).

Almost surely, 2^25397950 is an apocalyptic number.

25397950 is a deficient number, since it is larger than the sum of its proper divisors (22944938).

25397950 is a wasteful number, since it uses less digits than its factorization.

25397950 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11868 (or 11863 counting only the distinct ones).

The product of its (nonzero) digits is 85050, while the sum is 40.

The square root of 25397950 is about 5039.6378838167. The cubic root of 25397950 is about 293.9450974963.

The spelling of 25397950 in words is "twenty-five million, three hundred ninety-seven thousand, nine hundred fifty".