513652725 has 48 divisors (see below), whose sum is σ = 948004800. Its totient is φ = 272669760.

The previous prime is 513652723. The next prime is 513652729. The reversal of 513652725 is 527256315.

It is not a de Polignac number, because 513652725 - 2¹ = 513652723 is a prime.

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 513652725.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (513652723) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 152914 + ... + 156236.

It is an arithmetic number, because the mean of its divisors is an integer number (19750100).

Almost surely, 2^513652725 is an apocalyptic number.

It is an amenable number.

513652725 is a deficient number, since it is larger than the sum of its proper divisors (434352075).

513652725 is a wasteful number, since it uses less digits than its factorization.

513652725 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3571 (or 3560 counting only the distinct ones).

The product of its digits is 63000, while the sum is 36.

The square root of 513652725 is about 22663.9079816346. The cubic root of 513652725 is about 800.8598697198.

The spelling of 513652725 in words is "five hundred thirteen million, six hundred fifty-two thousand, seven hundred twenty-five".