5125511945 has 8 divisors (see below), whose sum is σ = 6349021440. Its totient is φ = 3968138160.

The previous prime is 5125511929. The next prime is 5125511947. The reversal of 5125511945 is 5491155215.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 5125511945 - 2⁴ = 5125511929 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 5125511899 and 5125511908.

It is not an unprimeable number, because it can be changed into a prime (5125511947) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 16533755 + ... + 16534064.

It is an arithmetic number, because the mean of its divisors is an integer number (793627680).

Almost surely, 2^5125511945 is an apocalyptic number.

It is an amenable number.

5125511945 is a deficient number, since it is larger than the sum of its proper divisors (1223509495).

5125511945 is a wasteful number, since it uses less digits than its factorization.

5125511945 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 33067855.

The product of its digits is 45000, while the sum is 38.

The square root of 5125511945 is about 71592.6808060712. The cubic root of 5125511945 is about 1724.1660263312.

The spelling of 5125511945 in words is "five billion, one hundred twenty-five million, five hundred eleven thousand, nine hundred forty-five".