5209981753 has 2 divisors, whose sum is σ = 5209981754. Its totient is φ = 5209981752.

The previous prime is 5209981727. The next prime is 5209981817. The reversal of 5209981753 is 3571899025.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 4943214864 + 266766889 = 70308^2 + 16333^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-5209981753 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 5209981697 and 5209981706.

It is not a weakly prime, because it can be changed into another prime (5209981703) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2604990876 + 2604990877.

It is an arithmetic number, because the mean of its divisors is an integer number (2604990877).

Almost surely, 2^5209981753 is an apocalyptic number.

It is an amenable number.

5209981753 is a deficient number, since it is larger than the sum of its proper divisors (1).

5209981753 is an equidigital number, since it uses as much as digits as its factorization.

5209981753 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 680400, while the sum is 49.

The square root of 5209981753 is about 72180.2033316615. The cubic root of 5209981753 is about 1733.5860386449.

The spelling of 5209981753 in words is "five billion, two hundred nine million, nine hundred eighty-one thousand, seven hundred fifty-three".