25539742753 has 16 divisors (see below), whose sum is σ = 32531829120. Its totient is φ = 19519094016.

The previous prime is 25539742751. The next prime is 25539742759. The reversal of 25539742753 is 35724793552.

It is a cyclic number.

It is not a de Polignac number, because 25539742753 - 2¹ = 25539742751 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 25539742753.

It is not an unprimeable number, because it can be changed into a prime (25539742751) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 5645626 + ... + 5650147.

It is an arithmetic number, because the mean of its divisors is an integer number (2033239320).

Almost surely, 2^25539742753 is an apocalyptic number.

It is an amenable number.

25539742753 is a deficient number, since it is larger than the sum of its proper divisors (6992086367).

25539742753 is a wasteful number, since it uses less digits than its factorization.

25539742753 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11295816.

The product of its digits is 7938000, while the sum is 52.

The spelling of 25539742753 in words is "twenty-five billion, five hundred thirty-nine million, seven hundred forty-two thousand, seven hundred fifty-three".