551111105 has 8 divisors (see below), whose sum is σ = 666382464. Its totient is φ = 437522800.

The previous prime is 551111089. The next prime is 551111161. The reversal of 551111105 is 501111155.

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

It is not a de Polignac number, because 551111105 - 2⁴ = 551111089 is a prime.

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 420041 + ... + 421350.

It is an arithmetic number, because the mean of its divisors is an integer number (83297808).

Almost surely, 2^551111105 is an apocalyptic number.

It is an amenable number.

551111105 is a deficient number, since it is larger than the sum of its proper divisors (115271359).

551111105 is a wasteful number, since it uses less digits than its factorization.

551111105 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 841527.

The product of its (nonzero) digits is 125, while the sum is 20.

The square root of 551111105 is about 23475.7556853874. The cubic root of 551111105 is about 819.8726279456.

The spelling of 551111105 in words is "five hundred fifty-one million, one hundred eleven thousand, one hundred five".