25180032 has 64 divisors (see below), whose sum is σ = 69816960. Its totient is φ = 8025600.

The previous prime is 25180031. The next prime is 25180037. The reversal of 25180032 is 23008152.

It is a tau number, because it is divible by the number of its divisors (64).

It is a junction number, because it is equal to n+sod(n) for n = 25179990 and 25180008.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (25180031) 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, 7407 + ... + 10257.

It is an arithmetic number, because the mean of its divisors is an integer number (1090890).

Almost surely, 2^25180032 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 25180032, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (34908480).

25180032 is an abundant number, since it is smaller than the sum of its proper divisors (44636928).

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

25180032 is a wasteful number, since it uses less digits than its factorization.

25180032 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2891 (or 2879 counting only the distinct ones).

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

The square root of 25180032 is about 5017.9709046586. The cubic root of 25180032 is about 293.1019847118.

Adding to 25180032 its reverse (23008152), we get a palindrome (48188184).

The spelling of 25180032 in words is "twenty-five million, one hundred eighty thousand, thirty-two".