51493150526837 has 2 divisors, whose sum is σ = 51493150526838. Its totient is φ = 51493150526836.

The previous prime is 51493150526723. The next prime is 51493150526849. The reversal of 51493150526837 is 73862505139415.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 51322408849156 + 170741677681 = 7163966^2 + 413209^2 .

It is a cyclic number.

It is not a de Polignac number, because 51493150526837 - 2¹⁴ = 51493150510453 is a prime.

It is a super-2 number, since 2×51493150526837² (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 (51493150526137) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 25746575263418 + 25746575263419.

It is an arithmetic number, because the mean of its divisors is an integer number (25746575263419).

It is a 2-persistent number, because it is pandigital, and so is 2⋅51493150526837 = 102986301053674, but 3⋅51493150526837 = 154479451580511 is not.

Almost surely, 2^{51493150526837} is an apocalyptic number.

It is an amenable number.

51493150526837 is a deficient number, since it is larger than the sum of its proper divisors (1).

51493150526837 is an equidigital number, since it uses as much as digits as its factorization.

51493150526837 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 27216000, while the sum is 59.

The spelling of 51493150526837 in words is "fifty-one trillion, four hundred ninety-three billion, one hundred fifty million, five hundred twenty-six thousand, eight hundred thirty-seven".