5156756650553 has 2 divisors, whose sum is σ = 5156756650554. Its totient is φ = 5156756650552.

The previous prime is 5156756650519. The next prime is 5156756650561. The reversal of 5156756650553 is 3550566576515.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 3276273762304 + 1880482888249 = 1810048^2 + 1371307^2 .

It is a cyclic number.

It is not a de Polignac number, because 5156756650553 - 2²⁸ = 5156488215097 is a prime.

It is a Sophie Germain prime.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 5156756650492 and 5156756650501.

It is not a weakly prime, because it can be changed into another prime (5156756656553) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2578378325276 + 2578378325277.

It is an arithmetic number, because the mean of its divisors is an integer number (2578378325277).

Almost surely, 2^{5156756650553} is an apocalyptic number.

It is an amenable number.

5156756650553 is a deficient number, since it is larger than the sum of its proper divisors (1).

5156756650553 is an equidigital number, since it uses as much as digits as its factorization.

5156756650553 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 70875000, while the sum is 59.

The spelling of 5156756650553 in words is "five trillion, one hundred fifty-six billion, seven hundred fifty-six million, six hundred fifty thousand, five hundred fifty-three".