25326280 has 64 divisors (see below), whose sum is σ = 67392000. Its totient is φ = 8381184.

The previous prime is 25326263. The next prime is 25326293. The reversal of 25326280 is 8262352.

It is a Harshad number since it is a multiple of its sum of digits (28).

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 6561 + ... + 9679.

It is an arithmetic number, because the mean of its divisors is an integer number (1053000).

Almost surely, 2^25326280 is an apocalyptic number.

25326280 is a gapful number since it is divisible by the number (20) 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 25326280, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (33696000).

25326280 is an abundant number, since it is smaller than the sum of its proper divisors (42065720).

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

25326280 is a wasteful number, since it uses less digits than its factorization.

25326280 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3166 (or 3162 counting only the distinct ones).

The product of its (nonzero) digits is 5760, while the sum is 28.

The square root of 25326280 is about 5032.5222304526. The cubic root of 25326280 is about 293.6683442873.

The spelling of 25326280 in words is "twenty-five million, three hundred twenty-six thousand, two hundred eighty".