25522250 has 32 divisors (see below), whose sum is σ = 51459408. Its totient is φ = 9422400.

The previous prime is 25522229. The next prime is 25522271. The reversal of 25522250 is 5222552.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (25522229) and next prime (25522271).

It can be written as a sum of positive squares in 8 ways, for example, as 2778889 + 22743361 = 1667^2 + 4769^2 .

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, 677 + ... + 7176.

Almost surely, 2^25522250 is an apocalyptic number.

25522250 is an abundant number, since it is smaller than the sum of its proper divisors (25937158).

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

25522250 is a wasteful number, since it uses less digits than its factorization.

25522250 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7883 (or 7873 counting only the distinct ones).

The product of its (nonzero) digits is 2000, while the sum is 23.

The square root of 25522250 is about 5051.9550671003. The cubic root of 25522250 is about 294.4238491455.

The spelling of 25522250 in words is "twenty-five million, five hundred twenty-two thousand, two hundred fifty".