2555115551 has 8 divisors (see below), whose sum is σ = 2594997504. Its totient is φ = 2515285080.

The previous prime is 2555115547. The next prime is 2555115593. The reversal of 2555115551 is 1555115552.

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 2555115551 - 2² = 2555115547 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2555115751) by changing a digit.

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, 94016 + ... + 118106.

It is an arithmetic number, because the mean of its divisors is an integer number (324374688).

Almost surely, 2^2555115551 is an apocalyptic number.

2555115551 is a deficient number, since it is larger than the sum of its proper divisors (39881953).

2555115551 is a wasteful number, since it uses less digits than its factorization.

2555115551 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 25741.

The product of its digits is 31250, while the sum is 35.

The square root of 2555115551 is about 50548.1508168202. The cubic root of 2555115551 is about 1367.1101731785.

Subtracting from 2555115551 its reverse (1555115552), we obtain a palindrome (999999999).

The spelling of 2555115551 in words is "two billion, five hundred fifty-five million, one hundred fifteen thousand, five hundred fifty-one".