1125567775 has 24 divisors (see below), whose sum is σ = 1416766464. Its totient is φ = 886965600.

The previous prime is 1125567769. The next prime is 1125567811. The reversal of 1125567775 is 5777655211.

It is not a de Polignac number, because 1125567775 - 2⁷ = 1125567647 is a prime.

It is a super-2 number, since 2×1125567775² = 2533805632236901250, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 509824 + ... + 512026.

It is an arithmetic number, because the mean of its divisors is an integer number (59031936).

Almost surely, 2^1125567775 is an apocalyptic number.

1125567775 is a deficient number, since it is larger than the sum of its proper divisors (291198689).

1125567775 is a wasteful number, since it uses less digits than its factorization.

1125567775 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2511 (or 2506 counting only the distinct ones).

The product of its digits is 514500, while the sum is 46.

The square root of 1125567775 is about 33549.4824848313. The cubic root of 1125567775 is about 1040.2168479653.

The spelling of 1125567775 in words is "one billion, one hundred twenty-five million, five hundred sixty-seven thousand, seven hundred seventy-five".