25928280 has 96 divisors (see below), whose sum is σ = 96314400. Its totient is φ = 5925888.

The previous prime is 25928267. The next prime is 25928297. The reversal of 25928280 is 8282952.

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

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 23 ways as a sum of consecutive naturals, for example, 2625 + ... + 7664.

It is an arithmetic number, because the mean of its divisors is an integer number (1003275).

Almost surely, 2^25928280 is an apocalyptic number.

25928280 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

25928280 is an abundant number, since it is smaller than the sum of its proper divisors (70386120).

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

25928280 is a wasteful number, since it uses less digits than its factorization.

25928280 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10313 (or 10306 counting only the distinct ones).

The product of its (nonzero) digits is 23040, while the sum is 36.

The square root of 25928280 is about 5091.9819324110. The cubic root of 25928280 is about 295.9769582746.

The spelling of 25928280 in words is "twenty-five million, nine hundred twenty-eight thousand, two hundred eighty".