25746534 has 48 divisors (see below), whose sum is σ = 64443600. Its totient is φ = 7342080.

The previous prime is 25746529. The next prime is 25746541. The reversal of 25746534 is 43564752.

25746534 is a modest number, since divided by 6534 gives 2574 as remainder.

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, 459 + ... + 7190.

It is an arithmetic number, because the mean of its divisors is an integer number (1342575).

Almost surely, 2^25746534 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 25746534, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (32221800).

25746534 is an abundant number, since it is smaller than the sum of its proper divisors (38697066).

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

25746534 is a wasteful number, since it uses less digits than its factorization.

25746534 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7685 (or 7682 counting only the distinct ones).

The product of its digits is 100800, while the sum is 36.

The square root of 25746534 is about 5074.1042559254. The cubic root of 25746534 is about 295.2837794022.

The spelling of 25746534 in words is "twenty-five million, seven hundred forty-six thousand, five hundred thirty-four".