51040522423399 has 2 divisors, whose sum is σ = 51040522423400. Its totient is φ = 51040522423398.

The previous prime is 51040522423393. The next prime is 51040522423427. The reversal of 51040522423399 is 99332422504015.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 51040522423399 - 2³ = 51040522423391 is a prime.

It is a super-2 number, since 2×51040522423399² (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 (51040522423391) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 25520261211699 + 25520261211700.

It is an arithmetic number, because the mean of its divisors is an integer number (25520261211700).

Almost surely, 2^{51040522423399} is an apocalyptic number.

51040522423399 is a deficient number, since it is larger than the sum of its proper divisors (1).

51040522423399 is an equidigital number, since it uses as much as digits as its factorization.

51040522423399 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 2332800, while the sum is 49.

The spelling of 51040522423399 in words is "fifty-one trillion, forty billion, five hundred twenty-two million, four hundred twenty-three thousand, three hundred ninety-nine".