51919183 has 2 divisors, whose sum is σ = 51919184. Its totient is φ = 51919182.

The previous prime is 51919169. The next prime is 51919187. The reversal of 51919183 is 38191915.

It is a happy number.

51919183 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 a de Polignac number, because none of the positive numbers 2^k-51919183 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (51919187) 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, 25959591 + 25959592.

It is an arithmetic number, because the mean of its divisors is an integer number (25959592).

Almost surely, 2^51919183 is an apocalyptic number.

51919183 is the 3852-nd centered heptagonal number.

51919183 is a deficient number, since it is larger than the sum of its proper divisors (1).

51919183 is an equidigital number, since it uses as much as digits as its factorization.

51919183 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 9720, while the sum is 37.

The square root of 51919183 is about 7205.4967212539. The cubic root of 51919183 is about 373.0576498090.

The spelling of 51919183 in words is "fifty-one million, nine hundred nineteen thousand, one hundred eighty-three".