52402313 has 4 divisors (see below), whose sum is σ = 55484820. Its totient is φ = 49319808.

The previous prime is 52402309. The next prime is 52402327. The reversal of 52402313 is 31320425.

It is a happy number.

52402313 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 38837824 + 13564489 = 6232^2 + 3683^2 .

It is a cyclic number.

It is not a de Polignac number, because 52402313 - 2² = 52402309 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (52402373) 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 3 ways as a sum of consecutive naturals, for example, 1541228 + ... + 1541261.

It is an arithmetic number, because the mean of its divisors is an integer number (13871205).

Almost surely, 2^52402313 is an apocalyptic number.

It is an amenable number.

52402313 is a deficient number, since it is larger than the sum of its proper divisors (3082507).

52402313 is a wasteful number, since it uses less digits than its factorization.

52402313 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3082506.

The product of its (nonzero) digits is 720, while the sum is 20.

The square root of 52402313 is about 7238.9441909715. The cubic root of 52402313 is about 374.2112321581.

Adding to 52402313 its reverse (31320425), we get a palindrome (83722738).

The spelling of 52402313 in words is "fifty-two million, four hundred two thousand, three hundred thirteen".