25801032 has 64 divisors (see below), whose sum is σ = 68935680. Its totient is φ = 8027712.

The previous prime is 25800997. The next prime is 25801049. The reversal of 25801032 is 23010852.

It is a super-4 number, since 4×25801032⁴ (a number of 31 digits) contains 4444 as substring.

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, 23193 + ... + 24279.

It is an arithmetic number, because the mean of its divisors is an integer number (1077120).

Almost surely, 2^25801032 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 25801032, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (34467840).

25801032 is an abundant number, since it is smaller than the sum of its proper divisors (43134648).

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

25801032 is a wasteful number, since it uses less digits than its factorization.

25801032 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1162 (or 1158 counting only the distinct ones).

The product of its (nonzero) digits is 480, while the sum is 21.

The square root of 25801032 is about 5079.4716260651. The cubic root of 25801032 is about 295.4919761565.

Adding to 25801032 its reverse (23010852), we get a palindrome (48811884).

The spelling of 25801032 in words is "twenty-five million, eight hundred one thousand, thirty-two".