513237020 has 24 divisors (see below), whose sum is σ = 1078295568. Its totient is φ = 205200000.

The previous prime is 513237017. The next prime is 513237029. The reversal of 513237020 is 20732315.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (513237029) 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, 52520 + ... + 61520.

It is an arithmetic number, because the mean of its divisors is an integer number (44928982).

Almost surely, 2^513237020 is an apocalyptic number.

It is an amenable number.

513237020 is an abundant number, since it is smaller than the sum of its proper divisors (565058548).

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

513237020 is a wasteful number, since it uses less digits than its factorization.

513237020 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11861 (or 11859 counting only the distinct ones).

The product of its (nonzero) digits is 1260, while the sum is 23.

The square root of 513237020 is about 22654.7350459016. The cubic root of 513237020 is about 800.6437630724.

Adding to 513237020 its reverse (20732315), we get a palindrome (533969335).

The spelling of 513237020 in words is "five hundred thirteen million, two hundred thirty-seven thousand, twenty".