51492011 has 2 divisors, whose sum is σ = 51492012. Its totient is φ = 51492010.

The previous prime is 51491983. The next prime is 51492017. The reversal of 51492011 is 11029415.

It is a happy number.

51492011 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 51492011 - 2¹⁰ = 51490987 is a prime.

It is a Sophie Germain prime.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (51492017) 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 as a sum of consecutive naturals, namely, 25746005 + 25746006.

It is an arithmetic number, because the mean of its divisors is an integer number (25746006).

Almost surely, 2^51492011 is an apocalyptic number.

51492011 is a deficient number, since it is larger than the sum of its proper divisors (1).

51492011 is an equidigital number, since it uses as much as digits as its factorization.

51492011 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 360, while the sum is 23.

The square root of 51492011 is about 7175.7934056103. The cubic root of 51492011 is about 372.0317037573.

The spelling of 51492011 in words is "fifty-one million, four hundred ninety-two thousand, eleven".