25228480 has 28 divisors (see below), whose sum is σ = 60076080. Its totient is φ = 10091264.

The previous prime is 25228457. The next prime is 25228481. The reversal of 25228480 is 8482252.

It is a super-2 number, since 2×25228480² = 1272952406220800, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (25228481) 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, 39100 + ... + 39739.

Almost surely, 2^25228480 is an apocalyptic number.

25228480 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

25228480 is an abundant number, since it is smaller than the sum of its proper divisors (34847600).

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

25228480 is an equidigital number, since it uses as much as digits as its factorization.

25228480 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 78856 (or 78846 counting only the distinct ones).

The product of its (nonzero) digits is 10240, while the sum is 31.

The square root of 25228480 is about 5022.7960340830. The cubic root of 25228480 is about 293.2898466296.

The spelling of 25228480 in words is "twenty-five million, two hundred twenty-eight thousand, four hundred eighty".