5051555111 has 4 divisors (see below), whose sum is σ = 5081804112. Its totient is φ = 5021306112.

The previous prime is 5051555087. The next prime is 5051555141. The reversal of 5051555111 is 1115551505.

It is a happy number.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-5051555111 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (5051555141) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 15124250 + ... + 15124583.

It is an arithmetic number, because the mean of its divisors is an integer number (1270451028).

Almost surely, 2^5051555111 is an apocalyptic number.

5051555111 is a deficient number, since it is larger than the sum of its proper divisors (30249001).

5051555111 is a wasteful number, since it uses less digits than its factorization.

5051555111 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 30249000.

The product of its (nonzero) digits is 3125, while the sum is 29.

The square root of 5051555111 is about 71074.2928983469. The cubic root of 5051555111 is about 1715.8330616024.

The spelling of 5051555111 in words is "five billion, fifty-one million, five hundred fifty-five thousand, one hundred eleven".