11605535225 has 6 divisors (see below), whose sum is σ = 14390863710. Its totient is φ = 9284428160.

The previous prime is 11605535177. The next prime is 11605535243. The reversal of 11605535225 is 52253550611.

It can be written as a sum of positive squares in 3 ways, for example, as 1290496 + 11604244729 = 1136^2 + 107723^2 .

It is not a de Polignac number, because 11605535225 - 2²⁴ = 11588758009 is a prime.

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 232110680 + ... + 232110729.

It is an arithmetic number, because the mean of its divisors is an integer number (2398477285).

Almost surely, 2^11605535225 is an apocalyptic number.

It is an amenable number.

11605535225 is a deficient number, since it is larger than the sum of its proper divisors (2785328485).

11605535225 is an equidigital number, since it uses as much as digits as its factorization.

11605535225 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 464221419 (or 464221414 counting only the distinct ones).

The product of its (nonzero) digits is 45000, while the sum is 35.

The spelling of 11605535225 in words is "eleven billion, six hundred five million, five hundred thirty-five thousand, two hundred twenty-five".