5125710772321 has 4 divisors (see below), whose sum is σ = 5141880207252. Its totient is φ = 5109541337392.

The previous prime is 5125710772319. The next prime is 5125710772331. The reversal of 5125710772321 is 1232770175215.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 959050034721 + 4166660737600 = 979311^2 + 2041240^2 .

It is a cyclic number.

It is not a de Polignac number, because 5125710772321 - 2¹ = 5125710772319 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (5125710772331) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 8084716990 + ... + 8084717623.

It is an arithmetic number, because the mean of its divisors is an integer number (1285470051813).

Almost surely, 2^{5125710772321} is an apocalyptic number.

It is an amenable number.

5125710772321 is a deficient number, since it is larger than the sum of its proper divisors (16169434931).

5125710772321 is a wasteful number, since it uses less digits than its factorization.

5125710772321 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 16169434930.

The product of its (nonzero) digits is 205800, while the sum is 43.

The spelling of 5125710772321 in words is "five trillion, one hundred twenty-five billion, seven hundred ten million, seven hundred seventy-two thousand, three hundred twenty-one".