25552552555 has 8 divisors (see below), whose sum is σ = 30684204144. Its totient is φ = 20427948000.

The previous prime is 25552552547. The next prime is 25552552579. The reversal of 25552552555 is 55525525552.

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

It is not a de Polignac number, because 25552552555 - 2³ = 25552552547 is a prime.

It is a Duffinian number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1753776 + ... + 1768285.

It is an arithmetic number, because the mean of its divisors is an integer number (3835525518).

Almost surely, 2^25552552555 is an apocalyptic number.

25552552555 is a deficient number, since it is larger than the sum of its proper divisors (5131651589).

25552552555 is a wasteful number, since it uses less digits than its factorization.

25552552555 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3523517.

The product of its digits is 3125000, while the sum is 46.

The spelling of 25552552555 in words is "twenty-five billion, five hundred fifty-two million, five hundred fifty-two thousand, five hundred fifty-five".