25561032 has 64 divisors (see below), whose sum is σ = 73457280. Its totient is φ = 7260672.

The previous prime is 25561031. The next prime is 25561033. The reversal of 25561032 is 23016552.

It is an interprime number because it is at equal distance from previous prime (25561031) and next prime (25561033).

It is a Harshad number since it is a multiple of its sum of digits (24).

It is a junction number, because it is equal to n+sod(n) for n = 25560993 and 25561011.

It is not an unprimeable number, because it can be changed into a prime (25561031) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 38818 + ... + 39470.

It is an arithmetic number, because the mean of its divisors is an integer number (1147770).

Almost surely, 2^25561032 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 25561032, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (36728640).

25561032 is an abundant number, since it is smaller than the sum of its proper divisors (47896248).

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

25561032 is a wasteful number, since it uses less digits than its factorization.

25561032 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 902 (or 898 counting only the distinct ones).

The product of its (nonzero) digits is 1800, while the sum is 24.

The square root of 25561032 is about 5055.7919260982. The cubic root of 25561032 is about 294.5729029719.

Adding to 25561032 its reverse (23016552), we get a palindrome (48577584).

The spelling of 25561032 in words is "twenty-five million, five hundred sixty-one thousand, thirty-two".