5550255551 has 4 divisors (see below), whose sum is σ = 5555261400. Its totient is φ = 5545249704.

The previous prime is 5550255541. The next prime is 5550255577. The reversal of 5550255551 is 1555520555.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 1555520555 = 5 ⋅311104111.

It is a cyclic number.

It is not a de Polignac number, because 5550255551 - 2¹⁰ = 5550254527 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 (5550255541) 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, 2501261 + ... + 2503478.

It is an arithmetic number, because the mean of its divisors is an integer number (1388815350).

Almost surely, 2^5550255551 is an apocalyptic number.

5550255551 is a deficient number, since it is larger than the sum of its proper divisors (5005849).

5550255551 is a wasteful number, since it uses less digits than its factorization.

5550255551 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5005848.

The product of its (nonzero) digits is 156250, while the sum is 38.

The square root of 5550255551 is about 74500.0372550242. The cubic root of 5550255551 is about 1770.5342265828.

The spelling of 5550255551 in words is "five billion, five hundred fifty million, two hundred fifty-five thousand, five hundred fifty-one".