505231232 has 32 divisors (see below), whose sum is σ = 1098019800. Its totient is φ = 229649920.

The previous prime is 505231231. The next prime is 505231267. The reversal of 505231232 is 232132505.

It is a tau number, because it is divible by the number of its divisors (32).

It is a junction number, because it is equal to n+sod(n) for n = 505231198 and 505231207.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (505231231) 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, 178007 + ... + 180822.

Almost surely, 2^505231232 is an apocalyptic number.

It is an amenable number.

505231232 is an abundant number, since it is smaller than the sum of its proper divisors (592788568).

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

505231232 is a wasteful number, since it uses less digits than its factorization.

505231232 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 358854 (or 358842 counting only the distinct ones).

The product of its (nonzero) digits is 1800, while the sum is 23.

The square root of 505231232 is about 22477.3493099164. The cubic root of 505231232 is about 796.4589493259.

Adding to 505231232 its reverse (232132505), we get a palindrome (737363737).

The spelling of 505231232 in words is "five hundred five million, two hundred thirty-one thousand, two hundred thirty-two".