25889530739 has 16 divisors (see below), whose sum is σ = 27999758880. Its totient is φ = 23854590720.

The previous prime is 25889530703. The next prime is 25889530753. The reversal of 25889530739 is 93703598852.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-25889530739 is a prime.

It is a super-2 number, since 2×25889530739² (a number of 22 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (25889533739) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 2281199 + ... + 2292519.

It is an arithmetic number, because the mean of its divisors is an integer number (1749984930).

Almost surely, 2^25889530739 is an apocalyptic number.

25889530739 is a deficient number, since it is larger than the sum of its proper divisors (2110228141).

25889530739 is a wasteful number, since it uses less digits than its factorization.

25889530739 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 14630.

The product of its (nonzero) digits is 16329600, while the sum is 59.

The spelling of 25889530739 in words is "twenty-five billion, eight hundred eighty-nine million, five hundred thirty thousand, seven hundred thirty-nine".