25105332 has 48 divisors (see below), whose sum is σ = 68382720. Its totient is φ = 7019232.

The previous prime is 25105313. The next prime is 25105349. The reversal of 25105332 is 23350152.

It is a Harshad number since it is a multiple of its sum of digits (21).

It is a junction number, because it is equal to n+sod(n) for n = 25105299 and 25105308.

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, 769 + ... + 7127.

It is an arithmetic number, because the mean of its divisors is an integer number (1424640).

Almost surely, 2^25105332 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 25105332, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (34191360).

25105332 is an abundant number, since it is smaller than the sum of its proper divisors (43277388).

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

25105332 is a wasteful number, since it uses less digits than its factorization.

25105332 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6420 (or 6418 counting only the distinct ones).

The product of its (nonzero) digits is 900, while the sum is 21.

The square root of 25105332 is about 5010.5221284812. The cubic root of 25105332 is about 292.8118552786.

Adding to 25105332 its reverse (23350152), we get a palindrome (48455484).

The spelling of 25105332 in words is "twenty-five million, one hundred five thousand, three hundred thirty-two".