25713534 has 48 divisors (see below), whose sum is σ = 65270016. Its totient is φ = 6678000.

The previous prime is 25713463. The next prime is 25713551. The reversal of 25713534 is 43531752.

It is a super-2 number, since 2×25713534² = 1322371661538312, which contains 22 as substring.

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, 742 + ... + 7209.

It is an arithmetic number, because the mean of its divisors is an integer number (1359792).

Almost surely, 2^25713534 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 25713534, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (32635008).

25713534 is an abundant number, since it is smaller than the sum of its proper divisors (39556482).

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

25713534 is a wasteful number, since it uses less digits than its factorization.

25713534 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7981 (or 7974 counting only the distinct ones).

The product of its digits is 12600, while the sum is 30.

The square root of 25713534 is about 5070.8514078013. The cubic root of 25713534 is about 295.1575678393.

It can be divided in two parts, 2571 and 3534, that added together give a triangular number (6105 = T₁₁₀).

The spelling of 25713534 in words is "twenty-five million, seven hundred thirteen thousand, five hundred thirty-four".