25512250 has 64 divisors (see below), whose sum is σ = 51891840. Its totient is φ = 9360000.

The previous prime is 25512247. The next prime is 25512251. The reversal of 25512250 is 5221552.

It is not an unprimeable number, because it can be changed into a prime (25512251) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 194685 + ... + 194815.

It is an arithmetic number, because the mean of its divisors is an integer number (810810).

Almost surely, 2^25512250 is an apocalyptic number.

25512250 is an abundant number, since it is smaller than the sum of its proper divisors (26379590).

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

25512250 is a wasteful number, since it uses less digits than its factorization.

25512250 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 208 (or 198 counting only the distinct ones).

The product of its (nonzero) digits is 1000, while the sum is 22.

The square root of 25512250 is about 5050.9652542856. The cubic root of 25512250 is about 294.3853908969.

It can be divided in two parts, 255 and 12250, that multiplied together give a triangular number (3123750 = T₂₄₉₉).

The spelling of 25512250 in words is "twenty-five million, five hundred twelve thousand, two hundred fifty".