51300111 has 4 divisors (see below), whose sum is σ = 68400152. Its totient is φ = 34200072.

The previous prime is 51300107. The next prime is 51300163. The reversal of 51300111 is 11100315.

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

It is not a de Polignac number, because 51300111 - 2² = 51300107 is a prime.

It is a super-2 number, since 2×51300111² = 5263402777224642, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (51300181) 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, 8550016 + ... + 8550021.

It is an arithmetic number, because the mean of its divisors is an integer number (17100038).

Almost surely, 2^51300111 is an apocalyptic number.

51300111 is a deficient number, since it is larger than the sum of its proper divisors (17100041).

51300111 is a wasteful number, since it uses less digits than its factorization.

51300111 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 17100040.

The product of its (nonzero) digits is 15, while the sum is 12.

The square root of 51300111 is about 7162.4095805811. The cubic root of 51300111 is about 371.5689668819.

Adding to 51300111 its reverse (11100315), we get a palindrome (62400426).

The spelling of 51300111 in words is "fifty-one million, three hundred thousand, one hundred eleven".