551055111 has 8 divisors (see below), whose sum is σ = 736202880. Its totient is φ = 366638712.

The previous prime is 551055083. The next prime is 551055121. The reversal of 551055111 is 111550155.

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

It is not a de Polignac number, because 551055111 - 2⁹ = 551054599 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (551055121) 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, 181081 + ... + 184098.

It is an arithmetic number, because the mean of its divisors is an integer number (92025360).

Almost surely, 2^551055111 is an apocalyptic number.

551055111 is a deficient number, since it is larger than the sum of its proper divisors (185147769).

551055111 is a wasteful number, since it uses less digits than its factorization.

551055111 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 365685.

The product of its (nonzero) digits is 625, while the sum is 24.

The square root of 551055111 is about 23474.5630630263. The cubic root of 551055111 is about 819.8448601009.

The spelling of 551055111 in words is "five hundred fifty-one million, fifty-five thousand, one hundred eleven".