513701532 has 18 divisors (see below), whose sum is σ = 1298523408. Its totient is φ = 171233832.

The previous prime is 513701501. The next prime is 513701533. The reversal of 513701532 is 235107315.

It is a tau number, because it is divible by the number of its divisors (18).

It is a junction number, because it is equal to n+sod(n) for n = 513701496 and 513701505.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (513701533) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 7134708 + ... + 7134779.

Almost surely, 2^513701532 is an apocalyptic number.

It is an amenable number.

513701532 is an abundant number, since it is smaller than the sum of its proper divisors (784821876).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

513701532 is a wasteful number, since it uses less digits than its factorization.

513701532 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 14269497 (or 14269492 counting only the distinct ones).

The product of its (nonzero) digits is 3150, while the sum is 27.

The square root of 513701532 is about 22664.9847121060. The cubic root of 513701532 is about 800.8852346715.

Adding to 513701532 its reverse (235107315), we get a palindrome (748808847).

The spelling of 513701532 in words is "five hundred thirteen million, seven hundred one thousand, five hundred thirty-two".