52640313 has 32 divisors (see below), whose sum is σ = 81948672. Its totient is φ = 29702400.

The previous prime is 52640309. The next prime is 52640327. The reversal of 52640313 is 31304625.

It is a happy number.

52640313 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 52640313 - 2² = 52640309 is a prime.

It is not an unprimeable number, because it can be changed into a prime (52640303) by changing a digit.

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 31 ways as a sum of consecutive naturals, for example, 57328 + ... + 58238.

It is an arithmetic number, because the mean of its divisors is an integer number (2560896).

Almost surely, 2^52640313 is an apocalyptic number.

It is an amenable number.

52640313 is a deficient number, since it is larger than the sum of its proper divisors (29308359).

52640313 is a wasteful number, since it uses less digits than its factorization.

52640313 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1045.

The product of its (nonzero) digits is 2160, while the sum is 24.

The square root of 52640313 is about 7255.3644291655. The cubic root of 52640313 is about 374.7769055255.

Adding to 52640313 its reverse (31304625), we get a palindrome (83944938).

The spelling of 52640313 in words is "fifty-two million, six hundred forty thousand, three hundred thirteen".