25232228 has 48 divisors (see below), whose sum is σ = 54405120. Its totient is φ = 9997344.

The previous prime is 25232213. The next prime is 25232239. The reversal of 25232228 is 82223252.

It is a junction number, because it is equal to n+sod(n) for n = 25232197 and 25232206.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 22325 + ... + 23427.

It is an arithmetic number, because the mean of its divisors is an integer number (1133440).

Almost surely, 2^25232228 is an apocalyptic number.

25232228 is a gapful number since it is divisible by the number (28) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 25232228, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (27202560).

25232228 is an abundant number, since it is smaller than the sum of its proper divisors (29172892).

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

25232228 is a wasteful number, since it uses less digits than its factorization.

25232228 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1176 (or 1174 counting only the distinct ones).

The product of its digits is 3840, while the sum is 26.

The square root of 25232228 is about 5023.1691191916. The cubic root of 25232228 is about 293.3043698446.

The spelling of 25232228 in words is "twenty-five million, two hundred thirty-two thousand, two hundred twenty-eight".