6199776304225 has 45 divisors (see below), whose sum is σ = 8969358623123. Its totient is φ = 4250856870960.

The previous prime is 6199776304223. The next prime is 6199776304261. The reversal of 6199776304225 is 5224036779916.

It is a happy number.

The square root of 6199776304225 is 2489935.

It is a perfect power (a square), and thus also a powerful number.

It can be written as a sum of positive squares in only one way, i.e., 2231919469521 + 3967856834704 = 1493961^2 + 1991948^2 .

It is not a de Polignac number, because 6199776304225 - 2¹ = 6199776304223 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (6199776304223) by changing a digit.

It is a polite number, since it can be written in 44 ways as a sum of consecutive naturals, for example, 610028994 + ... + 610039156.

Almost surely, 2^{6199776304225} is an apocalyptic number.

6199776304225 is the 2489935-th square number.

6199776304225 is the 1244968-th centered octagonal number.

It is an amenable number.

6199776304225 is a deficient number, since it is larger than the sum of its proper divisors (2769582318898).

6199776304225 is an frugal number, since it uses more digits than its factorization.

6199776304225 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 20364 (or 10175 counting only the distinct ones).

The product of its (nonzero) digits is 34292160, while the sum is 61.

The spelling of 6199776304225 in words is "six trillion, one hundred ninety-nine billion, seven hundred seventy-six million, three hundred four thousand, two hundred twenty-five".