25255000555 has 4 divisors (see below), whose sum is σ = 30306000672. Its totient is φ = 20204000440.

The previous prime is 25255000553. The next prime is 25255000591. The reversal of 25255000555 is 55500055252.

It is a semiprime because it is the product of two primes.

It is not a de Polignac number, because 25255000555 - 2¹ = 25255000553 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 25255000555.

It is not an unprimeable number, because it can be changed into a prime (25255000553) 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 3 ways as a sum of consecutive naturals, for example, 2525500051 + ... + 2525500060.

It is an arithmetic number, because the mean of its divisors is an integer number (7576500168).

Almost surely, 2^25255000555 is an apocalyptic number.

25255000555 is a deficient number, since it is larger than the sum of its proper divisors (5051000117).

25255000555 is an equidigital number, since it uses as much as digits as its factorization.

25255000555 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5051000116.

The product of its (nonzero) digits is 62500, while the sum is 34.

The spelling of 25255000555 in words is "twenty-five billion, two hundred fifty-five million, five hundred fifty-five", and thus it is an aban number.