551355055 has 4 divisors (see below), whose sum is σ = 661626072. Its totient is φ = 441084040.

The previous prime is 551355029. The next prime is 551355071. The reversal of 551355055 is 550553155.

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

It is not a de Polignac number, because 551355055 - 2¹¹ = 551353007 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 551355055.

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, 55135501 + ... + 55135510.

It is an arithmetic number, because the mean of its divisors is an integer number (165406518).

Almost surely, 2^551355055 is an apocalyptic number.

551355055 is a deficient number, since it is larger than the sum of its proper divisors (110271017).

551355055 is a wasteful number, since it uses less digits than its factorization.

551355055 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 110271016.

The product of its (nonzero) digits is 46875, while the sum is 34.

The square root of 551355055 is about 23480.9508964181. The cubic root of 551355055 is about 819.9935826387.

The spelling of 551355055 in words is "five hundred fifty-one million, three hundred fifty-five thousand, fifty-five".