51144111 has 12 divisors (see below), whose sum is σ = 77087088. Its totient is φ = 32613504.

The previous prime is 51144073. The next prime is 51144127. The reversal of 51144111 is 11144115.

51144111 is a `hidden beast` number, since 511 + 44 + 111 = 666.

It is not a de Polignac number, because 51144111 - 2²² = 46949807 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (51144811) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 123330 + ... + 123743.

It is an arithmetic number, because the mean of its divisors is an integer number (6423924).

Almost surely, 2^51144111 is an apocalyptic number.

51144111 is a deficient number, since it is larger than the sum of its proper divisors (25942977).

51144111 is a wasteful number, since it uses less digits than its factorization.

51144111 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 247102 (or 247099 counting only the distinct ones).

The product of its digits is 80, while the sum is 18.

The square root of 51144111 is about 7151.5110990615. The cubic root of 51144111 is about 371.1919461650.

Adding to 51144111 its reverse (11144115), we get a palindrome (62288226).

The spelling of 51144111 in words is "fifty-one million, one hundred forty-four thousand, one hundred eleven".