25550272235 has 16 divisors (see below), whose sum is σ = 30719859456. Its totient is φ = 20400575328.

The previous prime is 25550272157. The next prime is 25550272271. The reversal of 25550272235 is 53227205552.

It is a cyclic number.

It is not a de Polignac number, because 25550272235 - 2²⁰ = 25549223659 is a prime.

It is a super-2 number, since 2×25550272235² (a number of 22 digits) contains 22 as substring.

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 8329172 + ... + 8332238.

It is an arithmetic number, because the mean of its divisors is an integer number (1919991216).

Almost surely, 2^25550272235 is an apocalyptic number.

25550272235 is a deficient number, since it is larger than the sum of its proper divisors (5169587221).

25550272235 is a wasteful number, since it uses less digits than its factorization.

25550272235 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5762.

The product of its (nonzero) digits is 210000, while the sum is 38.

Adding to 25550272235 its reverse (53227205552), we get a palindrome (78777477787).

The spelling of 25550272235 in words is "twenty-five billion, five hundred fifty million, two hundred seventy-two thousand, two hundred thirty-five".