551056005055 has 4 divisors (see below), whose sum is σ = 661267206072. Its totient is φ = 440844804040.

The previous prime is 551056005007. The next prime is 551056005077. The reversal of 551056005055 is 550500650155.

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

It is not a de Polignac number, because 551056005055 - 2⁷ = 551056004927 is a prime.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 55105600501 + ... + 55105600510.

It is an arithmetic number, because the mean of its divisors is an integer number (165316801518).

Almost surely, 2^551056005055 is an apocalyptic number.

551056005055 is a deficient number, since it is larger than the sum of its proper divisors (110211201017).

551056005055 is a wasteful number, since it uses less digits than its factorization.

551056005055 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 110211201016.

The product of its (nonzero) digits is 93750, while the sum is 37.

The spelling of 551056005055 in words is "five hundred fifty-one billion, fifty-six million, five thousand, fifty-five".