51136111 has 4 divisors (see below), whose sum is σ = 55069672. Its totient is φ = 47202552.

The previous prime is 51136097. The next prime is 51136121. The reversal of 51136111 is 11163115.

51136111 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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

It is a cyclic number.

It is not a de Polignac number, because 51136111 - 2⁹ = 51135599 is a prime.

It is a super-2 number, since 2×51136111² = 5229803696408642, 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 (51136121) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1966761 + ... + 1966786.

It is an arithmetic number, because the mean of its divisors is an integer number (13767418).

Almost surely, 2^51136111 is an apocalyptic number.

51136111 is a deficient number, since it is larger than the sum of its proper divisors (3933561).

51136111 is a wasteful number, since it uses less digits than its factorization.

51136111 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3933560.

The product of its digits is 90, while the sum is 19.

The square root of 51136111 is about 7150.9517548366. The cubic root of 51136111 is about 371.1725911154.

Adding to 51136111 its reverse (11163115), we get a palindrome (62299226).

The spelling of 51136111 in words is "fifty-one million, one hundred thirty-six thousand, one hundred eleven".