51523503211 has 2 divisors, whose sum is σ = 51523503212. Its totient is φ = 51523503210.

The previous prime is 51523503193. The next prime is 51523503247. The reversal of 51523503211 is 11230532515.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 51523503211 - 2¹³ = 51523495019 is a prime.

It is a super-3 number, since 3×51523503211³ (a number of 33 digits) contains 333 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 51523503211.

It is not a weakly prime, because it can be changed into another prime (51523509211) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 25761751605 + 25761751606.

It is an arithmetic number, because the mean of its divisors is an integer number (25761751606).

Almost surely, 2^51523503211 is an apocalyptic number.

51523503211 is a deficient number, since it is larger than the sum of its proper divisors (1).

51523503211 is an equidigital number, since it uses as much as digits as its factorization.

51523503211 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 4500, while the sum is 28.

The spelling of 51523503211 in words is "fifty-one billion, five hundred twenty-three million, five hundred three thousand, two hundred eleven".