51268111 has 2 divisors, whose sum is σ = 51268112. Its totient is φ = 51268110.

The previous prime is 51268103. The next prime is 51268123. The reversal of 51268111 is 11186215.

It is a happy number.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 51268111 - 2³ = 51268103 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (51265111) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 25634055 + 25634056.

It is an arithmetic number, because the mean of its divisors is an integer number (25634056).

Almost surely, 2^51268111 is an apocalyptic number.

51268111 is a deficient number, since it is larger than the sum of its proper divisors (1).

51268111 is an equidigital number, since it uses as much as digits as its factorization.

51268111 is an evil number, because the sum of its binary digits is even.

The product of its digits is 480, while the sum is 25.

The square root of 51268111 is about 7160.1753470149. The cubic root of 51268111 is about 371.4916916749.

The spelling of 51268111 in words is "fifty-one million, two hundred sixty-eight thousand, one hundred eleven".