11561275233025 has 12 divisors (see below), whose sum is σ = 16383978616192. Its totient is φ = 7927731588240.

The previous prime is 11561275232999. The next prime is 11561275233049. The reversal of 11561275233025 is 52033257216511.

It is a happy number.

It is not a de Polignac number, because 11561275233025 - 2²³ = 11561266844417 is a prime.

It is a Duffinian number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 33032214777 + ... + 33032215126.

Almost surely, 2^{11561275233025} is an apocalyptic number.

It is an amenable number.

11561275233025 is a deficient number, since it is larger than the sum of its proper divisors (4822703383167).

11561275233025 is an equidigital number, since it uses as much as digits as its factorization.

11561275233025 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 66064429920 (or 66064429915 counting only the distinct ones).

The product of its (nonzero) digits is 378000, while the sum is 43.

The spelling of 11561275233025 in words is "eleven trillion, five hundred sixty-one billion, two hundred seventy-five million, two hundred thirty-three thousand, twenty-five".