52513133 has 2 divisors, whose sum is σ = 52513134. Its totient is φ = 52513132.

The previous prime is 52513129. The next prime is 52513151. The reversal of 52513133 is 33131525.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 45185284 + 7327849 = 6722^2 + 2707^2 .

It is a cyclic number.

It is not a de Polignac number, because 52513133 - 2² = 52513129 is a prime.

It is a Sophie Germain prime.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 52513099 and 52513108.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (52513183) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 26256566 + 26256567.

It is an arithmetic number, because the mean of its divisors is an integer number (26256567).

Almost surely, 2^52513133 is an apocalyptic number.

It is an amenable number.

52513133 is a deficient number, since it is larger than the sum of its proper divisors (1).

52513133 is an equidigital number, since it uses as much as digits as its factorization.

52513133 is an evil number, because the sum of its binary digits is even.

The product of its digits is 1350, while the sum is 23.

The square root of 52513133 is about 7246.5945795249. The cubic root of 52513133 is about 374.4748394121.

Adding to 52513133 its reverse (33131525), we get a palindrome (85644658).

The spelling of 52513133 in words is "fifty-two million, five hundred thirteen thousand, one hundred thirty-three".