51555142915337 has 2 divisors, whose sum is σ = 51555142915338. Its totient is φ = 51555142915336.

The previous prime is 51555142915271. The next prime is 51555142915363. The reversal of 51555142915337 is 73351924155515.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 49646736049936 + 1908406865401 = 7046044^2 + 1381451^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-51555142915337 is a prime.

It is a super-2 number, since 2×51555142915337² (a number of 28 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (51555142915037) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 25777571457668 + 25777571457669.

It is an arithmetic number, because the mean of its divisors is an integer number (25777571457669).

Almost surely, 2^{51555142915337} is an apocalyptic number.

It is an amenable number.

51555142915337 is a deficient number, since it is larger than the sum of its proper divisors (1).

51555142915337 is an equidigital number, since it uses as much as digits as its factorization.

51555142915337 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 14175000, while the sum is 56.

The spelling of 51555142915337 in words is "fifty-one trillion, five hundred fifty-five billion, one hundred forty-two million, nine hundred fifteen thousand, three hundred thirty-seven".