25990272 has 192 divisors, whose sum is σ = 93562560. Its totient is φ = 6727680.

The previous prime is 25990247. The next prime is 25990273. The reversal of 25990272 is 27209952.

It is a tau number, because it is divible by the number of its divisors (192).

It is a Harshad number since it is a multiple of its sum of digits (36).

It is not an unprimeable number, because it can be changed into a prime (25990273) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 88558 + ... + 88850.

It is an arithmetic number, because the mean of its divisors is an integer number (487305).

Almost surely, 2^25990272 is an apocalyptic number.

25990272 is a gapful number since it is divisible by the number (22) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 25990272, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (46781280).

25990272 is an abundant number, since it is smaller than the sum of its proper divisors (67572288).

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

25990272 is a wasteful number, since it uses less digits than its factorization.

25990272 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 331 (or 316 counting only the distinct ones).

The product of its (nonzero) digits is 22680, while the sum is 36.

The square root of 25990272 is about 5098.0655154676. The cubic root of 25990272 is about 296.2126545885.

It can be divided in two parts, 25990 and 272, that added together give a palindrome (26262).

The spelling of 25990272 in words is "twenty-five million, nine hundred ninety thousand, two hundred seventy-two".