1125563722775 has 12 divisors (see below), whose sum is σ = 1409517821544. Its totient is φ = 891535620000.

The previous prime is 1125563722771. The next prime is 1125563722817. The reversal of 1125563722775 is 5772273655211.

It is not a de Polignac number, because 1125563722775 - 2² = 1125563722771 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 (1125563722771) by changing a digit.

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, 222881381 + ... + 222886430.

It is an arithmetic number, because the mean of its divisors is an integer number (117459818462).

Almost surely, 2^{1125563722775} is an apocalyptic number.

1125563722775 is a deficient number, since it is larger than the sum of its proper divisors (283954098769).

1125563722775 is a wasteful number, since it uses less digits than its factorization.

1125563722775 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 445767922 (or 445767917 counting only the distinct ones).

The product of its digits is 6174000, while the sum is 53.

The spelling of 1125563722775 in words is "one trillion, one hundred twenty-five billion, five hundred sixty-three million, seven hundred twenty-two thousand, seven hundred seventy-five".