25231332 has 48 divisors (see below), whose sum is σ = 71245440. Its totient is φ = 6784512.

The previous prime is 25231331. The next prime is 25231351. The reversal of 25231332 is 23313252.

It is a super-3 number, since 3×25231332³ (a number of 23 digits) contains 333 as substring. Note that it is a super-d number also for d = 2.

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 = 25231299 and 25231308.

It is not an unprimeable number, because it can be changed into a prime (25231331) 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, 7407 + ... + 10262.

It is an arithmetic number, because the mean of its divisors is an integer number (1484280).

Almost surely, 2^25231332 is an apocalyptic number.

It is an amenable number.

25231332 is an abundant number, since it is smaller than the sum of its proper divisors (46014108).

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

25231332 is a wasteful number, since it uses less digits than its factorization.

25231332 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 17700 (or 17698 counting only the distinct ones).

The product of its digits is 1080, while the sum is 21.

The square root of 25231332 is about 5023.0799316754. The cubic root of 25231332 is about 293.3008980435.

Adding to 25231332 its reverse (23313252), we get a palindrome (48544584).

The spelling of 25231332 in words is "twenty-five million, two hundred thirty-one thousand, three hundred thirty-two".