513725487 has 8 divisors (see below), whose sum is σ = 747237120. Its totient is φ = 311348760.

The previous prime is 513725479. The next prime is 513725503. The reversal of 513725487 is 784527315.

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

It is not a de Polignac number, because 513725487 - 2³ = 513725479 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (513725417) 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, 7783687 + ... + 7783752.

It is an arithmetic number, because the mean of its divisors is an integer number (93404640).

Almost surely, 2^513725487 is an apocalyptic number.

513725487 is a deficient number, since it is larger than the sum of its proper divisors (233511633).

513725487 is a wasteful number, since it uses less digits than its factorization.

513725487 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 15567453.

The product of its digits is 235200, while the sum is 42.

The square root of 513725487 is about 22665.5131642767. The cubic root of 513725487 is about 800.8976834745.

The spelling of 513725487 in words is "five hundred thirteen million, seven hundred twenty-five thousand, four hundred eighty-seven".