7531320232 has 16 divisors (see below), whose sum is σ = 14421677760. Its totient is φ = 3685539504.

The previous prime is 7531320221. The next prime is 7531320233. The reversal of 7531320232 is 2320231357.

It is a self number, because there is not a number n which added to its sum of digits gives 7531320232.

It is not an unprimeable number, because it can be changed into a prime (7531320233) 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, 10014678 + ... + 10015429.

It is an arithmetic number, because the mean of its divisors is an integer number (901354860).

Almost surely, 2^7531320232 is an apocalyptic number.

It is an amenable number.

7531320232 is a deficient number, since it is larger than the sum of its proper divisors (6890357528).

7531320232 is a wasteful number, since it uses less digits than its factorization.

7531320232 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 20030160 (or 20030156 counting only the distinct ones).

The product of its (nonzero) digits is 7560, while the sum is 28.

The square root of 7531320232 is about 86783.1794301177. The cubic root of 7531320232 is about 1960.1548045159.

Adding to 7531320232 its reverse (2320231357), we get a palindrome (9851551589).

The spelling of 7531320232 in words is "seven billion, five hundred thirty-one million, three hundred twenty thousand, two hundred thirty-two".