52412513 has 4 divisors (see below), whose sum is σ = 55495620. Its totient is φ = 49329408.

The previous prime is 52412509. The next prime is 52412527. The reversal of 52412513 is 31521425.

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 19430464 + 32982049 = 4408^2 + 5743^2 .

It is a cyclic number.

It is not a de Polignac number, because 52412513 - 2² = 52412509 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (52412533) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1541528 + ... + 1541561.

It is an arithmetic number, because the mean of its divisors is an integer number (13873905).

Almost surely, 2^52412513 is an apocalyptic number.

It is an amenable number.

52412513 is a deficient number, since it is larger than the sum of its proper divisors (3083107).

52412513 is a wasteful number, since it uses less digits than its factorization.

52412513 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3083106.

The product of its digits is 1200, while the sum is 23.

The square root of 52412513 is about 7239.6486793214. The cubic root of 52412513 is about 374.2355103926.

Adding to 52412513 its reverse (31521425), we get a palindrome (83933938).

It can be divided in two parts, 52412 and 513, that added together give a palindrome (52925).

The spelling of 52412513 in words is "fifty-two million, four hundred twelve thousand, five hundred thirteen".