51522140052431 has 2 divisors, whose sum is σ = 51522140052432. Its totient is φ = 51522140052430.

The previous prime is 51522140052413. The next prime is 51522140052469. The reversal of 51522140052431 is 13425004122515.

Together with previous prime (51522140052413) it forms an Ormiston pair, because they use the same digits, order apart.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 51522140052431 - 2¹⁴ = 51522140036047 is a prime.

It is a super-2 number, since 2×51522140052431² (a number of 28 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 51522140052391 and 51522140052400.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (51522140082431) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 25761070026215 + 25761070026216.

It is an arithmetic number, because the mean of its divisors is an integer number (25761070026216).

Almost surely, 2^{51522140052431} is an apocalyptic number.

51522140052431 is a deficient number, since it is larger than the sum of its proper divisors (1).

51522140052431 is an equidigital number, since it uses as much as digits as its factorization.

51522140052431 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 48000, while the sum is 35.

Adding to 51522140052431 its reverse (13425004122515), we get a palindrome (64947144174946).

The spelling of 51522140052431 in words is "fifty-one trillion, five hundred twenty-two billion, one hundred forty million, fifty-two thousand, four hundred thirty-one".