51352516646099 has 2 divisors, whose sum is σ = 51352516646100. Its totient is φ = 51352516646098.

The previous prime is 51352516646021. The next prime is 51352516646107. The reversal of 51352516646099 is 99064661525315.

It is a happy number.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-51352516646099 is a prime.

It is a super-2 number, since 2×51352516646099² (a number of 28 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (51352516646699) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 25676258323049 + 25676258323050.

It is an arithmetic number, because the mean of its divisors is an integer number (25676258323050).

Almost surely, 2^{51352516646099} is an apocalyptic number.

51352516646099 is a deficient number, since it is larger than the sum of its proper divisors (1).

51352516646099 is an equidigital number, since it uses as much as digits as its factorization.

51352516646099 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 52488000, while the sum is 62.

The spelling of 51352516646099 in words is "fifty-one trillion, three hundred fifty-two billion, five hundred sixteen million, six hundred forty-six thousand, ninety-nine".