513232004 has 24 divisors (see below), whose sum is σ = 920156160. Its totient is φ = 250344864.

The previous prime is 513231997. The next prime is 513232021. The reversal of 513232004 is 400232315.

It is a happy number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 218822 + ... + 221154.

It is an arithmetic number, because the mean of its divisors is an integer number (38339840).

Almost surely, 2^513232004 is an apocalyptic number.

It is an amenable number.

513232004 is a deficient number, since it is larger than the sum of its proper divisors (406924156).

513232004 is a wasteful number, since it uses less digits than its factorization.

513232004 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3659 (or 3657 counting only the distinct ones).

The product of its (nonzero) digits is 720, while the sum is 20.

The square root of 513232004 is about 22654.6243402975. The cubic root of 513232004 is about 800.6411547634.

Adding to 513232004 its reverse (400232315), we get a palindrome (913464319).

The spelling of 513232004 in words is "five hundred thirteen million, two hundred thirty-two thousand, four".