25008228 has 54 divisors (see below), whose sum is σ = 73541286. Its totient is φ = 7144704.

The previous prime is 25008223. The next prime is 25008229. The reversal of 25008228 is 82280052.

It can be written as a sum of positive squares in only one way, i.e., 24980004 + 28224 = 4998^2 + 168^2 .

It is a super-2 number, since 2×25008228² = 1250822935399968, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (25008223) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 17 ways as a sum of consecutive naturals, for example, 5325 + ... + 8852.

Almost surely, 2^25008228 is an apocalyptic number.

25008228 is a gapful number since it is divisible by the number (28) formed by its first and last digit.

It is an amenable number.

25008228 is an abundant number, since it is smaller than the sum of its proper divisors (48533058).

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

25008228 is a wasteful number, since it uses less digits than its factorization.

25008228 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 14201 (or 14189 counting only the distinct ones).

The product of its (nonzero) digits is 2560, while the sum is 27.

The square root of 25008228 is about 5000.8227323112. The cubic root of 25008228 is about 292.4338487266.

The spelling of 25008228 in words is "twenty-five million, eight thousand, two hundred twenty-eight".