25745734 has 16 divisors (see below), whose sum is σ = 45163008. Its totient is φ = 10777032.

The previous prime is 25745723. The next prime is 25745737. The reversal of 25745734 is 43754752.

It is a happy number.

It is a junction number, because it is equal to n+sod(n) for n = 25745693 and 25745702.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (25745737) 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 7 ways as a sum of consecutive naturals, for example, 20782 + ... + 21985.

It is an arithmetic number, because the mean of its divisors is an integer number (2822688).

Almost surely, 2^25745734 is an apocalyptic number.

25745734 is a deficient number, since it is larger than the sum of its proper divisors (19417274).

25745734 is a wasteful number, since it uses less digits than its factorization.

25745734 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 42819.

The product of its digits is 117600, while the sum is 37.

The square root of 25745734 is about 5074.0254236651. The cubic root of 25745734 is about 295.2807210039.

The spelling of 25745734 in words is "twenty-five million, seven hundred forty-five thousand, seven hundred thirty-four".