25550275553 has 8 divisors (see below), whose sum is σ = 27976648320. Its totient is φ = 23141172880.

The previous prime is 25550275549. The next prime is 25550275561. The reversal of 25550275553 is 35557205552.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 25550275553 - 2² = 25550275549 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (25550275523) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 4314425 + ... + 4320342.

It is an arithmetic number, because the mean of its divisors is an integer number (3497081040).

Almost surely, 2^25550275553 is an apocalyptic number.

It is an amenable number.

25550275553 is a deficient number, since it is larger than the sum of its proper divisors (2426372767).

25550275553 is a wasteful number, since it uses less digits than its factorization.

25550275553 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8635047.

The product of its (nonzero) digits is 1312500, while the sum is 44.

It can be divided in two parts, 25550 and 275553, that added together give a palindrome (301103).

The spelling of 25550275553 in words is "twenty-five billion, five hundred fifty million, two hundred seventy-five thousand, five hundred fifty-three".