51111100604983 has 2 divisors, whose sum is σ = 51111100604984. Its totient is φ = 51111100604982.

The previous prime is 51111100604933. The next prime is 51111100605023. The reversal of 51111100604983 is 38940600111115.

It is a happy number.

It is an a-pointer prime, because the next prime (51111100605023) can be obtained adding 51111100604983 to its sum of digits (40).

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-51111100604983 is a prime.

It is a super-2 number, since 2×51111100604983² (a number of 28 digits) contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (51111100604933) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (29) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 25555550302491 + 25555550302492.

It is an arithmetic number, because the mean of its divisors is an integer number (25555550302492).

Almost surely, 2^{51111100604983} is an apocalyptic number.

51111100604983 is a deficient number, since it is larger than the sum of its proper divisors (1).

51111100604983 is an equidigital number, since it uses as much as digits as its factorization.

51111100604983 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 25920, while the sum is 40.

The spelling of 51111100604983 in words is "fifty-one trillion, one hundred eleven billion, one hundred million, six hundred four thousand, nine hundred eighty-three".