25896739 has 8 divisors (see below), whose sum is σ = 29225520. Its totient is φ = 22730400.

The previous prime is 25896737. The next prime is 25896743. The reversal of 25896739 is 93769852.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 25896739 - 2¹ = 25896737 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 25896692 and 25896701.

It is not an unprimeable number, because it can be changed into a prime (25896737) 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, 40272 + ... + 40909.

It is an arithmetic number, because the mean of its divisors is an integer number (3653190).

Almost surely, 2^25896739 is an apocalyptic number.

25896739 is a gapful number since it is divisible by the number (29) formed by its first and last digit.

25896739 is a deficient number, since it is larger than the sum of its proper divisors (3328781).

25896739 is a wasteful number, since it uses less digits than its factorization.

25896739 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 81221.

The product of its digits is 816480, while the sum is 49.

The square root of 25896739 is about 5088.8838658393. The cubic root of 25896739 is about 295.8568937836.

The spelling of 25896739 in words is "twenty-five million, eight hundred ninety-six thousand, seven hundred thirty-nine".