5156321801 has 2 divisors, whose sum is σ = 5156321802. Its totient is φ = 5156321800.

The previous prime is 5156321773. The next prime is 5156321857. The reversal of 5156321801 is 1081236515.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 3809358400 + 1346963401 = 61720^2 + 36701^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-5156321801 is a prime.

It is not a weakly prime, because it can be changed into another prime (5156321501) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2578160900 + 2578160901.

It is an arithmetic number, because the mean of its divisors is an integer number (2578160901).

Almost surely, 2^5156321801 is an apocalyptic number.

It is an amenable number.

5156321801 is a deficient number, since it is larger than the sum of its proper divisors (1).

5156321801 is an equidigital number, since it uses as much as digits as its factorization.

5156321801 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 7200, while the sum is 32.

The square root of 5156321801 is about 71807.5330379759. The cubic root of 5156321801 is about 1727.6138264603.

The spelling of 5156321801 in words is "five billion, one hundred fifty-six million, three hundred twenty-one thousand, eight hundred one".