13052205261 has 6 divisors (see below), whose sum is σ = 18853185390. Its totient is φ = 8701470168.

The previous prime is 13052205259. The next prime is 13052205307. The reversal of 13052205261 is 16250225031.

It is a happy number.

13052205261 is a `hidden beast` number, since 1 + 30 + 522 + 0 + 52 + 61 = 666.

It can be written as a sum of positive squares in only one way, i.e., 7292306025 + 5759899236 = 85395^2 + 75894^2 .

It is not a de Polignac number, because 13052205261 - 2¹ = 13052205259 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13052205241) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 725122506 + ... + 725122523.

It is an arithmetic number, because the mean of its divisors is an integer number (3142197565).

Almost surely, 2^13052205261 is an apocalyptic number.

It is an amenable number.

13052205261 is a deficient number, since it is larger than the sum of its proper divisors (5800980129).

13052205261 is a wasteful number, since it uses less digits than its factorization.

13052205261 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1450245035 (or 1450245032 counting only the distinct ones).

The product of its (nonzero) digits is 3600, while the sum is 27.

The spelling of 13052205261 in words is "thirteen billion, fifty-two million, two hundred five thousand, two hundred sixty-one".