513113125 has 40 divisors (see below), whose sum is σ = 776001600. Its totient is φ = 331104000.

The previous prime is 513113123. The next prime is 513113129. The reversal of 513113125 is 521311315.

It is not a de Polignac number, because 513113125 - 2¹ = 513113123 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 513113096 and 513113105.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (513113123) by changing a digit.

It is a polite number, since it can be written in 39 ways as a sum of consecutive naturals, for example, 70926 + ... + 77824.

It is an arithmetic number, because the mean of its divisors is an integer number (19400040).

Almost surely, 2^513113125 is an apocalyptic number.

It is an amenable number.

513113125 is a deficient number, since it is larger than the sum of its proper divisors (262888475).

513113125 is an equidigital number, since it uses as much as digits as its factorization.

513113125 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6943 (or 6928 counting only the distinct ones).

The product of its digits is 450, while the sum is 22.

The square root of 513113125 is about 22652.0004635352. Note that the first 3 decimals coincide. The cubic root of 513113125 is about 800.5793329695.

The spelling of 513113125 in words is "five hundred thirteen million, one hundred thirteen thousand, one hundred twenty-five".