7125112520 has 16 divisors (see below), whose sum is σ = 16031503260. Its totient is φ = 2850044992.

The previous prime is 7125112493. The next prime is 7125112529. The reversal of 7125112520 is 252115217.

It can be written as a sum of positive squares in 2 ways, for example, as 6295787716 + 829324804 = 79346^2 + 28798^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 7125112520.

It is not an unprimeable number, because it can be changed into a prime (7125112529) 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, 89063867 + ... + 89063946.

Almost surely, 2^7125112520 is an apocalyptic number.

It is an amenable number.

7125112520 is an abundant number, since it is smaller than the sum of its proper divisors (8906390740).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

7125112520 is a wasteful number, since it uses less digits than its factorization.

7125112520 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 178127824 (or 178127820 counting only the distinct ones).

The product of its (nonzero) digits is 1400, while the sum is 26.

The square root of 7125112520 is about 84410.3815889965. The cubic root of 7125112520 is about 1924.2606950201.

Adding to 7125112520 its reverse (252115217), we get a palindrome (7377227737).

The spelling of 7125112520 in words is "seven billion, one hundred twenty-five million, one hundred twelve thousand, five hundred twenty".