232513536 has 56 divisors (see below), whose sum is σ = 620063784. Its totient is φ = 77496320.

The previous prime is 232513499. The next prime is 232513537. The reversal of 232513536 is 635315232.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (232513537) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 19846 + ... + 29306.

Almost surely, 2^232513536 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 232513536, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (310031892).

232513536 is an abundant number, since it is smaller than the sum of its proper divisors (387550248).

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

232513536 is an frugal number, since it uses more digits than its factorization.

232513536 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9490 (or 9466 counting only the distinct ones).

The product of its digits is 16200, while the sum is 30.

The square root of 232513536 is about 15248.3945384424. The cubic root of 232513536 is about 614.9164061144.

Adding to 232513536 its reverse (635315232), we get a palindrome (867828768).

The spelling of 232513536 in words is "two hundred thirty-two million, five hundred thirteen thousand, five hundred thirty-six".