25543496 has 32 divisors (see below), whose sum is σ = 52747200. Its totient is φ = 11499840.

The previous prime is 25543493. The next prime is 25543523. The reversal of 25543496 is 69434552.

It is not an unprimeable number, because it can be changed into a prime (25543493) 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, 8261 + ... + 10923.

It is an arithmetic number, because the mean of its divisors is an integer number (1648350).

Almost surely, 2^25543496 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 25543496, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (26373600).

25543496 is an abundant number, since it is smaller than the sum of its proper divisors (27203704).

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

25543496 is a wasteful number, since it uses less digits than its factorization.

25543496 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2789 (or 2785 counting only the distinct ones).

The product of its digits is 129600, while the sum is 38.

The square root of 25543496 is about 5054.0573799671. The cubic root of 25543496 is about 294.5055242088.

The spelling of 25543496 in words is "twenty-five million, five hundred forty-three thousand, four hundred ninety-six".