52195342369 has 27 divisors (see below), whose sum is σ = 56450080281. Its totient is φ = 48251385600.

The previous prime is 52195342363. The next prime is 52195342379. The reversal of 52195342369 is 96324359125.

It is a happy number.

The square root of 52195342369 is 228463.

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 68973025 + 52126369344 = 8305^2 + 228312^2 .

It is not a de Polignac number, because 52195342369 - 2⁹ = 52195341857 is a prime.

It is a super-2 number, since 2×52195342369² (a number of 22 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (52195342363) by changing a digit.

It is a polite number, since it can be written in 26 ways as a sum of consecutive naturals, for example, 345664444 + ... + 345664594.

Almost surely, 2^52195342369 is an apocalyptic number.

52195342369 is the 228463-rd square number.

52195342369 is the 114232-nd centered octagonal number.

It is an amenable number.

52195342369 is a deficient number, since it is larger than the sum of its proper divisors (4254737912).

52195342369 is an frugal number, since it uses more digits than its factorization.

52195342369 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 514 (or 257 counting only the distinct ones).

The product of its digits is 1749600, while the sum is 49.

Multiplying 52195342369 by its sum of digits (49), we get a square (2557571776081 = 1599241²).

The spelling of 52195342369 in words is "fifty-two billion, one hundred ninety-five million, three hundred forty-two thousand, three hundred sixty-nine".