51854111 has 2 divisors, whose sum is σ = 51854112. Its totient is φ = 51854110.

The previous prime is 51854083. The next prime is 51854137. The reversal of 51854111 is 11145815.

It is an a-pointer prime, because the next prime (51854137) can be obtained adding 51854111 to its sum of digits (26).

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-51854111 is a prime.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (51854141) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 25927055 + 25927056.

It is an arithmetic number, because the mean of its divisors is an integer number (25927056).

Almost surely, 2^51854111 is an apocalyptic number.

51854111 is a deficient number, since it is larger than the sum of its proper divisors (1).

51854111 is an equidigital number, since it uses as much as digits as its factorization.

51854111 is an evil number, because the sum of its binary digits is even.

The product of its digits is 800, while the sum is 26.

The square root of 51854111 is about 7200.9798638796. The cubic root of 51854111 is about 372.9017295572.

Adding to 51854111 its reverse (11145815), we get a palindrome (62999926).

The spelling of 51854111 in words is "fifty-one million, eight hundred fifty-four thousand, one hundred eleven".