52126513 has 4 divisors (see below), whose sum is σ = 52981108. Its totient is φ = 51271920.

The previous prime is 52126511. The next prime is 52126517. The reversal of 52126513 is 31562125.

52126513 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 2663424 + 49463089 = 1632^2 + 7033^2 .

It is a cyclic number.

It is not a de Polignac number, because 52126513 - 2¹ = 52126511 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (52126511) 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, 427206 + ... + 427327.

It is an arithmetic number, because the mean of its divisors is an integer number (13245277).

Almost surely, 2^52126513 is an apocalyptic number.

It is an amenable number.

52126513 is a deficient number, since it is larger than the sum of its proper divisors (854595).

52126513 is an equidigital number, since it uses as much as digits as its factorization.

52126513 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 854594.

The product of its digits is 1800, while the sum is 25.

The square root of 52126513 is about 7219.8693201470. The cubic root of 52126513 is about 373.5535700064.

Adding to 52126513 its reverse (31562125), we get a palindrome (83688638).

The spelling of 52126513 in words is "fifty-two million, one hundred twenty-six thousand, five hundred thirteen".