51950118511 has 2 divisors, whose sum is σ = 51950118512. Its totient is φ = 51950118510.

The previous prime is 51950118503. The next prime is 51950118541. The reversal of 51950118511 is 11581105915.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 51950118511 - 2³ = 51950118503 is a prime.

It is a super-3 number, since 3×51950118511³ (a number of 33 digits) contains 333 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (51950118541) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 25975059255 + 25975059256.

It is an arithmetic number, because the mean of its divisors is an integer number (25975059256).

Almost surely, 2^51950118511 is an apocalyptic number.

51950118511 is a deficient number, since it is larger than the sum of its proper divisors (1).

51950118511 is an equidigital number, since it uses as much as digits as its factorization.

51950118511 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 9000, while the sum is 37.

The spelling of 51950118511 in words is "fifty-one billion, nine hundred fifty million, one hundred eighteen thousand, five hundred eleven".