5197738821025 has 27 divisors (see below), whose sum is σ = 6478884954009. Its totient is φ = 4136568912000.

The previous prime is 5197738820959. The next prime is 5197738821061. The reversal of 5197738821025 is 5201288377915.

It is a happy number.

The square root of 5197738821025 is 2279855.

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

It can be written as a sum of positive squares in 4 ways, for example, as 962054289 + 5196776766736 = 31017^2 + 2279644^2 .

It is not a de Polignac number, because 5197738821025 - 2⁹ = 5197738820513 is a prime.

It is a Duffinian number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 26 ways as a sum of consecutive naturals, for example, 2405245945 + ... + 2405248105.

Almost surely, 2^{5197738821025} is an apocalyptic number.

5197738821025 is the 2279855-th square number.

5197738821025 is the 1139928-th centered octagonal number.

It is an amenable number.

5197738821025 is a deficient number, since it is larger than the sum of its proper divisors (1281146132984).

5197738821025 is an frugal number, since it uses more digits than its factorization.

5197738821025 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4754 (or 2377 counting only the distinct ones).

The product of its (nonzero) digits is 8467200, while the sum is 58.

The spelling of 5197738821025 in words is "five trillion, one hundred ninety-seven billion, seven hundred thirty-eight million, eight hundred twenty-one thousand, twenty-five".