52997913 has 6 divisors (see below), whose sum is σ = 76552554. Its totient is φ = 35331936.

The previous prime is 52997909. The next prime is 52997921. The reversal of 52997913 is 31979925.

It is a happy number.

52997913 is digitally balanced in base 2, 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 only one way, i.e., 38044224 + 14953689 = 6168^2 + 3867^2 .

It is not a de Polignac number, because 52997913 - 2² = 52997909 is a prime.

It is not an unprimeable number, because it can be changed into a prime (52997963) 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 5 ways as a sum of consecutive naturals, for example, 2944320 + ... + 2944337.

It is an arithmetic number, because the mean of its divisors is an integer number (12758759).

Almost surely, 2^52997913 is an apocalyptic number.

It is an amenable number.

52997913 is a deficient number, since it is larger than the sum of its proper divisors (23554641).

52997913 is a wasteful number, since it uses less digits than its factorization.

52997913 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5888663 (or 5888660 counting only the distinct ones).

The product of its digits is 153090, while the sum is 45.

The square root of 52997913 is about 7279.9665521210. The cubic root of 52997913 is about 375.6236449370.

The spelling of 52997913 in words is "fifty-two million, nine hundred ninety-seven thousand, nine hundred thirteen".