25253890 has 8 divisors (see below), whose sum is σ = 45457020. Its totient is φ = 10101552.

The previous prime is 25253843. The next prime is 25253897. The reversal of 25253890 is 9835252.

It can be written as a sum of positive squares in 2 ways, for example, as 24631369 + 622521 = 4963^2 + 789^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is not an unprimeable number, because it can be changed into a prime (25253897) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1262685 + ... + 1262704.

Almost surely, 2^25253890 is an apocalyptic number.

25253890 is a deficient number, since it is larger than the sum of its proper divisors (20203130).

25253890 is a wasteful number, since it uses less digits than its factorization.

25253890 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2525396.

The product of its (nonzero) digits is 21600, while the sum is 34.

The square root of 25253890 is about 5025.3248651207. The cubic root of 25253890 is about 293.3882802830.

The spelling of 25253890 in words is "twenty-five million, two hundred fifty-three thousand, eight hundred ninety".