1125831025507 has 4 divisors (see below), whose sum is σ = 1126333855360. Its totient is φ = 1125328195656.

The previous prime is 1125831025493. The next prime is 1125831025511. The reversal of 1125831025507 is 7055201385211.

It is a happy number.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 1125831025507 - 2¹⁹ = 1125830501219 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 1125831025507.

It is not an unprimeable number, because it can be changed into a prime (1125831025597) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 251411568 + ... + 251416045.

It is an arithmetic number, because the mean of its divisors is an integer number (281583463840).

Almost surely, 2^{1125831025507} is an apocalyptic number.

1125831025507 is a deficient number, since it is larger than the sum of its proper divisors (502829853).

1125831025507 is an equidigital number, since it uses as much as digits as its factorization.

1125831025507 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 502829852.

The product of its (nonzero) digits is 84000, while the sum is 40.

The spelling of 1125831025507 in words is "one trillion, one hundred twenty-five billion, eight hundred thirty-one million, twenty-five thousand, five hundred seven".