555555055551 has 8 divisors (see below), whose sum is σ = 740777326464. Its totient is φ = 370351410840.

The previous prime is 555555055541. The next prime is 555555055553. The reversal of 555555055551 is 155550555555.

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

It is not a de Polignac number, because 555555055551 - 2⁹ = 555555055039 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 555555055494 and 555555055503.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (555555055553) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 4586805 + ... + 4706366.

It is an arithmetic number, because the mean of its divisors is an integer number (92597165808).

Almost surely, 2^555555055551 is an apocalyptic number.

555555055551 is a deficient number, since it is larger than the sum of its proper divisors (185222270913).

555555055551 is a wasteful number, since it uses less digits than its factorization.

555555055551 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9313101.

The product of its (nonzero) digits is 9765625, while the sum is 51.

The spelling of 555555055551 in words is "five hundred fifty-five billion, five hundred fifty-five million, fifty-five thousand, five hundred fifty-one".