25321296 has 320 divisors, whose sum is σ = 95993856. Its totient is φ = 5529600.

The previous prime is 25321277. The next prime is 25321337. The reversal of 25321296 is 69212352.

It is a super-2 number, since 2×25321296² = 1282336062239232, which contains 22 as substring.

It is a hoax number, since the sum of its digits (30) coincides with the sum of the digits of its distinct prime factors.

Its product of digits (6480) is a multiple of the sum of its prime factors (90).

It is a congruent number.

It is an unprimeable number.

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 63 ways as a sum of consecutive naturals, for example, 816801 + ... + 816831.

Almost surely, 2^25321296 is an apocalyptic number.

25321296 is a gapful number since it is divisible by the number (26) 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 25321296, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (47996928).

25321296 is an abundant number, since it is smaller than the sum of its proper divisors (70672560).

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

25321296 is a wasteful number, since it uses less digits than its factorization.

25321296 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 90 (or 84 counting only the distinct ones).

The product of its digits is 6480, while the sum is 30.

The square root of 25321296 is about 5032.0270269544. The cubic root of 25321296 is about 293.6490791991.

It can be divided in two parts, 2532 and 1296, that added together give a triangular number (3828 = T₈₇).

The spelling of 25321296 in words is "twenty-five million, three hundred twenty-one thousand, two hundred ninety-six".