25328990 has 8 divisors (see below), whose sum is σ = 45592200. Its totient is φ = 10131592.

The previous prime is 25328987. The next prime is 25328993. The reversal of 25328990 is 9982352.

It is an interprime number because it is at equal distance from previous prime (25328987) and next prime (25328993).

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

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (25328993) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1266440 + ... + 1266459.

It is an arithmetic number, because the mean of its divisors is an integer number (5699025).

Almost surely, 2^25328990 is an apocalyptic number.

25328990 is a deficient number, since it is larger than the sum of its proper divisors (20263210).

25328990 is a wasteful number, since it uses less digits than its factorization.

25328990 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2532906.

The product of its (nonzero) digits is 38880, while the sum is 38.

The square root of 25328990 is about 5032.7914719368. The cubic root of 25328990 is about 293.6788184249.

The spelling of 25328990 in words is "twenty-five million, three hundred twenty-eight thousand, nine hundred ninety".