52891260361 has 3 divisors (see below), whose sum is σ = 52891490343. Its totient is φ = 52891030380.

The previous prime is 52891260347. The next prime is 52891260397. The reversal of 52891260361 is 16306219825.

The square root of 52891260361 is 229981.

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

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length.

It can be written as a sum of positive squares in only one way, i.e., 48959970361 + 3931290000 = 221269^2 + 62700^2 .

It is not a de Polignac number, because 52891260361 - 2⁵ = 52891260329 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (52891260061) by changing a digit.

It is a polite number, since it can be written in 2 ways as a sum of consecutive naturals, for example, 114991 + ... + 344971.

It is an arithmetic number, because the mean of its divisors is an integer number (17630496781).

Almost surely, 2^52891260361 is an apocalyptic number.

52891260361 is the 229981-st square number.

52891260361 is the 114991-st centered octagonal number.

It is an amenable number.

52891260361 is a deficient number, since it is larger than the sum of its proper divisors (229982).

52891260361 is an frugal number, since it uses more digits than its factorization.

52891260361 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 459962 (or 229981 counting only the distinct ones).

The product of its (nonzero) digits is 155520, while the sum is 43.

The spelling of 52891260361 in words is "fifty-two billion, eight hundred ninety-one million, two hundred sixty thousand, three hundred sixty-one".