25227828 has 24 divisors (see below), whose sum is σ = 65405760. Its totient is φ = 8409240.

The previous prime is 25227823. The next prime is 25227871. The reversal of 25227828 is 82872252.

It is a Smith number, since the sum of its digits (36) coincides with the sum of the digits of its prime factors.

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

It is a junction number, because it is equal to n+sod(n) for n = 25227792 and 25227801.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (25227823) 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, 116688 + ... + 116903.

It is an arithmetic number, because the mean of its divisors is an integer number (2725240).

Almost surely, 2^25227828 is an apocalyptic number.

It is an amenable number.

25227828 is an abundant number, since it is smaller than the sum of its proper divisors (40177932).

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

25227828 is a wasteful number, since it uses less digits than its factorization.

25227828 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 233604 (or 233596 counting only the distinct ones).

The product of its digits is 35840, while the sum is 36.

The square root of 25227828 is about 5022.7311295748. The cubic root of 25227828 is about 293.2873200323.

The spelling of 25227828 in words is "twenty-five million, two hundred twenty-seven thousand, eight hundred twenty-eight".