25336028081 has 64 divisors (see below), whose sum is σ = 33428505600. Its totient is φ = 18633646080.

The previous prime is 25336028071. The next prime is 25336028131. The reversal of 25336028081 is 18082063352.

It is not a de Polignac number, because 25336028081 - 2¹⁴ = 25336011697 is a prime.

It is a super-2 number, since 2×25336028081² (a number of 22 digits) contains 22 as substring.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (25336028071) by changing a digit.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 72595895 + ... + 72596243.

It is an arithmetic number, because the mean of its divisors is an integer number (522320400).

Almost surely, 2^25336028081 is an apocalyptic number.

It is an amenable number.

25336028081 is a deficient number, since it is larger than the sum of its proper divisors (8092477519).

25336028081 is a wasteful number, since it uses less digits than its factorization.

25336028081 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 834.

The product of its (nonzero) digits is 69120, while the sum is 38.

The spelling of 25336028081 in words is "twenty-five billion, three hundred thirty-six million, twenty-eight thousand, eighty-one".