6321168725 has 6 divisors (see below), whose sum is σ = 7838249250. Its totient is φ = 5056934960.

The previous prime is 6321168719. The next prime is 6321168761. The reversal of 6321168725 is 5278611236.

It can be written as a sum of positive squares in 3 ways, for example, as 362255089 + 5958913636 = 19033^2 + 77194^2 .

It is not a de Polignac number, because 6321168725 - 2⁶ = 6321168661 is a prime.

It is a Curzon number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 126423350 + ... + 126423399.

It is an arithmetic number, because the mean of its divisors is an integer number (1306374875).

Almost surely, 2^6321168725 is an apocalyptic number.

It is an amenable number.

6321168725 is a deficient number, since it is larger than the sum of its proper divisors (1517080525).

6321168725 is a wasteful number, since it uses less digits than its factorization.

6321168725 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 252846759 (or 252846754 counting only the distinct ones).

The product of its digits is 120960, while the sum is 41.

The square root of 6321168725 is about 79505.7779346885. Note that the first 3 decimals coincide. The cubic root of 6321168725 is about 1848.9810532024.

The spelling of 6321168725 in words is "six billion, three hundred twenty-one million, one hundred sixty-eight thousand, seven hundred twenty-five".