25442250 has 32 divisors (see below), whose sum is σ = 63505728. Its totient is φ = 6784400.

The previous prime is 25442233. The next prime is 25442269. The reversal of 25442250 is 5224452.

It is a happy number.

It is a self number, because there is not a number n which added to its sum of digits gives 25442250.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 16212 + ... + 17711.

It is an arithmetic number, because the mean of its divisors is an integer number (1984554).

Almost surely, 2^25442250 is an apocalyptic number.

25442250 is an abundant number, since it is smaller than the sum of its proper divisors (38063478).

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

25442250 is a wasteful number, since it uses less digits than its factorization.

25442250 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 33943 (or 33933 counting only the distinct ones).

The product of its (nonzero) digits is 3200, while the sum is 24.

The square root of 25442250 is about 5044.0311259944. The cubic root of 25442250 is about 294.1159013622.

The spelling of 25442250 in words is "twenty-five million, four hundred forty-two thousand, two hundred fifty".