25525000280553 has 4 divisors (see below), whose sum is σ = 34033333707408. Its totient is φ = 17016666853700.

The previous prime is 25525000280531. The next prime is 25525000280561. The reversal of 25525000280553 is 35508200052552.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 25525000280553 - 2¹⁶ = 25525000215017 is a prime.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (25525000280503) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 4254166713423 + ... + 4254166713428.

It is an arithmetic number, because the mean of its divisors is an integer number (8508333426852).

Almost surely, 2^{25525000280553} is an apocalyptic number.

It is an amenable number.

25525000280553 is a deficient number, since it is larger than the sum of its proper divisors (8508333426855).

25525000280553 is an equidigital number, since it uses as much as digits as its factorization.

25525000280553 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8508333426854.

The product of its (nonzero) digits is 600000, while the sum is 42.

The spelling of 25525000280553 in words is "twenty-five trillion, five hundred twenty-five billion, two hundred eighty thousand, five hundred fifty-three".