51186011 has 2 divisors, whose sum is σ = 51186012. Its totient is φ = 51186010.

The previous prime is 51185993. The next prime is 51186043. The reversal of 51186011 is 11068115.

It is a happy number.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 51186011 - 2¹⁴ = 51169627 is a prime.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (51186071) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 25593005 + 25593006.

It is an arithmetic number, because the mean of its divisors is an integer number (25593006).

Almost surely, 2^51186011 is an apocalyptic number.

51186011 is a deficient number, since it is larger than the sum of its proper divisors (1).

51186011 is an equidigital number, since it uses as much as digits as its factorization.

51186011 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 240, while the sum is 23.

The square root of 51186011 is about 7154.4399501289. The cubic root of 51186011 is about 371.2932852824.

The spelling of 51186011 in words is "fifty-one million, one hundred eighty-six thousand, eleven".