11255206261 has 8 divisors (see below), whose sum is σ = 12155333400. Its totient is φ = 10359985152.

The previous prime is 11255206247. The next prime is 11255206309. The reversal of 11255206261 is 16260255211.

It can be written as a sum of positive squares in 4 ways, for example, as 1208952900 + 10046253361 = 34770^2 + 100231^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 11255206261 - 2³³ = 2665271669 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11255206661) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1221736 + ... + 1230913.

It is an arithmetic number, because the mean of its divisors is an integer number (1519416675).

Almost surely, 2^11255206261 is an apocalyptic number.

It is an amenable number.

11255206261 is a deficient number, since it is larger than the sum of its proper divisors (900127139).

11255206261 is a wasteful number, since it uses less digits than its factorization.

11255206261 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2453015.

The product of its (nonzero) digits is 7200, while the sum is 31.

The spelling of 11255206261 in words is "eleven billion, two hundred fifty-five million, two hundred six thousand, two hundred sixty-one".