51050001111 has 8 divisors (see below), whose sum is σ = 68087618304. Its totient is φ = 34022859000.

The previous prime is 51050001091. The next prime is 51050001127. The reversal of 51050001111 is 11110005015.

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

It is a de Polignac number, because none of the positive numbers 2^k-51050001111 is a prime.

It is a super-2 number, since 2×51050001111² (a number of 22 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (51050001011) 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, 2607391 + ... + 2626896.

It is an arithmetic number, because the mean of its divisors is an integer number (8510952288).

Almost surely, 2^51050001111 is an apocalyptic number.

51050001111 is a deficient number, since it is larger than the sum of its proper divisors (17037617193).

51050001111 is a wasteful number, since it uses less digits than its factorization.

51050001111 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5237541.

The product of its (nonzero) digits is 25, while the sum is 15.

Adding to 51050001111 its reverse (11110005015), we get a palindrome (62160006126).

The spelling of 51050001111 in words is "fifty-one billion, fifty million, one thousand, one hundred eleven".