13055229261 has 12 divisors (see below), whose sum is σ = 19115876988. Its totient is φ = 8584259904.

The previous prime is 13055229259. The next prime is 13055229283. The reversal of 13055229261 is 16292255031.

It is a happy number.

13055229261 is a `hidden beast` number, since 1 + 305 + 5 + 2 + 292 + 61 = 666.

It can be written as a sum of positive squares in 2 ways, for example, as 2788473636 + 10266755625 = 52806^2 + 101325^2 .

It is not a de Polignac number, because 13055229261 - 2¹ = 13055229259 is a prime.

It is a super-2 number, since 2×13055229261² (a number of 21 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13055224261) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 9934830 + ... + 9936143.

It is an arithmetic number, because the mean of its divisors is an integer number (1592989749).

Almost surely, 2^13055229261 is an apocalyptic number.

It is an amenable number.

13055229261 is a deficient number, since it is larger than the sum of its proper divisors (6060647727).

13055229261 is a wasteful number, since it uses less digits than its factorization.

13055229261 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 19871052 (or 19871049 counting only the distinct ones).

The product of its (nonzero) digits is 32400, while the sum is 36.

The spelling of 13055229261 in words is "thirteen billion, fifty-five million, two hundred twenty-nine thousand, two hundred sixty-one".