25226628 has 24 divisors (see below), whose sum is σ = 67271232. Its totient is φ = 7207584.

The previous prime is 25226627. The next prime is 25226647. The reversal of 25226628 is 82662252.

It is not an unprimeable number, because it can be changed into a prime (25226627) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 150075 + ... + 150242.

It is an arithmetic number, because the mean of its divisors is an integer number (2802968).

Almost surely, 2^25226628 is an apocalyptic number.

25226628 is a gapful number since it is divisible by the number (28) formed by its first and last digit.

It is an amenable number.

25226628 is an abundant number, since it is smaller than the sum of its proper divisors (42044604).

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

25226628 is a wasteful number, since it uses less digits than its factorization.

25226628 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 300331 (or 300329 counting only the distinct ones).

The product of its digits is 23040, while the sum is 33.

The square root of 25226628 is about 5022.6116712324. The cubic root of 25226628 is about 293.2826697395.

The spelling of 25226628 in words is "twenty-five million, two hundred twenty-six thousand, six hundred twenty-eight".