25543452 has 48 divisors (see below), whose sum is σ = 68850432. Its totient is φ = 7284480.

The previous prime is 25543439. The next prime is 25543459. The reversal of 25543452 is 25434552.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (25543459) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 3448 + ... + 7935.

It is an arithmetic number, because the mean of its divisors is an integer number (1434384).

Almost surely, 2^25543452 is an apocalyptic number.

25543452 is a gapful number since it is divisible by the number (22) formed by its first and last digit.

It is an amenable number.

25543452 is an abundant number, since it is smaller than the sum of its proper divisors (43306980).

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

25543452 is a wasteful number, since it uses less digits than its factorization.

25543452 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11418 (or 11416 counting only the distinct ones).

The product of its digits is 24000, while the sum is 30.

The square root of 25543452 is about 5054.0530270269. The cubic root of 25543452 is about 294.5053551084.

Subtracting from 25543452 its reverse (25434552), we obtain a square (108900 = 330²).

It can be divided in two parts, 2554 and 3452, that added together give a palindrome (6006).

The spelling of 25543452 in words is "twenty-five million, five hundred forty-three thousand, four hundred fifty-two".