320540552 has 16 divisors (see below), whose sum is σ = 601203660. Its totient is φ = 160219584.

The previous prime is 320540537. The next prime is 320540587. The reversal of 320540552 is 255045023.

320540552 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 2 ways, for example, as 248188516 + 72352036 = 15754^2 + 8506^2 .

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 44978 + ... + 51614.

Almost surely, 2^320540552 is an apocalyptic number.

It is an amenable number.

320540552 is a deficient number, since it is larger than the sum of its proper divisors (280663108).

320540552 is a wasteful number, since it uses less digits than its factorization.

320540552 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12680 (or 12676 counting only the distinct ones).

The product of its (nonzero) digits is 6000, while the sum is 26.

The square root of 320540552 is about 17903.6463325212. The cubic root of 320540552 is about 684.3752998949.

Adding to 320540552 its reverse (255045023), we get a palindrome (575585575).

The spelling of 320540552 in words is "three hundred twenty million, five hundred forty thousand, five hundred fifty-two".