25546542 has 48 divisors (see below), whose sum is σ = 61373952. Its totient is φ = 7061040.

The previous prime is 25546531. The next prime is 25546589. The reversal of 25546542 is 24564552.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 7713 + ... + 10515.

It is an arithmetic number, because the mean of its divisors is an integer number (1278624).

Almost surely, 2^25546542 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 25546542, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (30686976).

25546542 is an abundant number, since it is smaller than the sum of its proper divisors (35827410).

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

25546542 is a wasteful number, since it uses less digits than its factorization.

25546542 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2853 (or 2846 counting only the distinct ones).

The product of its digits is 48000, while the sum is 33.

The square root of 25546542 is about 5054.3587130318. The cubic root of 25546542 is about 294.5172301002.

The spelling of 25546542 in words is "twenty-five million, five hundred forty-six thousand, five hundred forty-two".