513215205 has 16 divisors (see below), whose sum is σ = 831540480. Its totient is φ = 270249408.

The previous prime is 513215203. The next prime is 513215221. The reversal of 513215205 is 502512315.

It is a happy number.

It is not a de Polignac number, because 513215205 - 2¹ = 513215203 is a prime.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (513215203) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 215362 + ... + 217731.

It is an arithmetic number, because the mean of its divisors is an integer number (51971280).

Almost surely, 2^513215205 is an apocalyptic number.

It is an amenable number.

513215205 is a deficient number, since it is larger than the sum of its proper divisors (318325275).

513215205 is a wasteful number, since it uses less digits than its factorization.

513215205 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 433180.

The product of its (nonzero) digits is 1500, while the sum is 24.

The square root of 513215205 is about 22654.2535741083. The cubic root of 513215205 is about 800.6324191965.

The spelling of 513215205 in words is "five hundred thirteen million, two hundred fifteen thousand, two hundred five".