51115016053 has 2 divisors, whose sum is σ = 51115016054. Its totient is φ = 51115016052.

The previous prime is 51115015997. The next prime is 51115016081. The reversal of 51115016053 is 35061051115.

It is an a-pointer prime, because the next prime (51115016081) can be obtained adding 51115016053 to its sum of digits (28).

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 50914312164 + 200703889 = 225642^2 + 14167^2 .

It is a cyclic number.

It is not a de Polignac number, because 51115016053 - 2¹⁷ = 51114884981 is a prime.

It is a super-2 number, since 2×51115016053² (a number of 22 digits) contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (51115016083) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 25557508026 + 25557508027.

It is an arithmetic number, because the mean of its divisors is an integer number (25557508027).

Almost surely, 2^51115016053 is an apocalyptic number.

It is an amenable number.

51115016053 is a deficient number, since it is larger than the sum of its proper divisors (1).

51115016053 is an equidigital number, since it uses as much as digits as its factorization.

51115016053 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 2250, while the sum is 28.

Adding to 51115016053 its reverse (35061051115), we get a palindrome (86176067168).

The spelling of 51115016053 in words is "fifty-one billion, one hundred fifteen million, sixteen thousand, fifty-three".