232215525 has 48 divisors (see below), whose sum is σ = 434704320. Its totient is φ = 121492800.

The previous prime is 232215509. The next prime is 232215527. The reversal of 232215525 is 525512232.

It is not a de Polignac number, because 232215525 - 2⁴ = 232215509 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (232215527) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 32530 + ... + 39020.

It is an arithmetic number, because the mean of its divisors is an integer number (9056340).

Almost surely, 2^232215525 is an apocalyptic number.

232215525 is a gapful number since it is divisible by the number (25) formed by its first and last digit.

It is an amenable number.

232215525 is a deficient number, since it is larger than the sum of its proper divisors (202488795).

232215525 is a wasteful number, since it uses less digits than its factorization.

232215525 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6563 (or 6552 counting only the distinct ones).

The product of its digits is 6000, while the sum is 27.

The square root of 232215525 is about 15238.6195240908. The cubic root of 232215525 is about 614.6535824197.

Adding to 232215525 its reverse (525512232), we get a palindrome (757727757).

The spelling of 232215525 in words is "two hundred thirty-two million, two hundred fifteen thousand, five hundred twenty-five".