513667525 has 12 divisors (see below), whose sum is σ = 727940512. Its totient is φ = 352229040.

The previous prime is 513667523. The next prime is 513667537. The reversal of 513667525 is 525766315.

It is not a de Polignac number, because 513667525 - 2¹ = 513667523 is a prime.

It is a hoax number, since the sum of its digits (40) coincides with the sum of the digits of its distinct prime factors.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (513667523) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 1467447 + ... + 1467796.

Almost surely, 2^513667525 is an apocalyptic number.

It is an amenable number.

513667525 is a deficient number, since it is larger than the sum of its proper divisors (214272987).

513667525 is a wasteful number, since it uses less digits than its factorization.

513667525 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2935260 (or 2935255 counting only the distinct ones).

The product of its digits is 189000, while the sum is 40.

The square root of 513667525 is about 22664.2344896094. The cubic root of 513667525 is about 800.8675614355.

The spelling of 513667525 in words is "five hundred thirteen million, six hundred sixty-seven thousand, five hundred twenty-five".