512506725 has 48 divisors (see below), whose sum is σ = 881610240. Its totient is φ = 262425600.

The previous prime is 512506717. The next prime is 512506747. The reversal of 512506725 is 527605215.

It is not a de Polignac number, because 512506725 - 2³ = 512506717 is a prime.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 317721 + ... + 319329.

It is an arithmetic number, because the mean of its divisors is an integer number (18366880).

Almost surely, 2^512506725 is an apocalyptic number.

It is an amenable number.

512506725 is a deficient number, since it is larger than the sum of its proper divisors (369103515).

512506725 is a wasteful number, since it uses less digits than its factorization.

512506725 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1790 (or 1785 counting only the distinct ones).

The product of its (nonzero) digits is 21000, while the sum is 33.

The square root of 512506725 is about 22638.6113752589. The cubic root of 512506725 is about 800.2638322519.

It can be divided in two parts, 51250 and 6725, that added together give a palindrome (57975).

The spelling of 512506725 in words is "five hundred twelve million, five hundred six thousand, seven hundred twenty-five".