52646513 has 4 divisors (see below), whose sum is σ = 54461940. Its totient is φ = 50831088.

The previous prime is 52646507. The next prime is 52646519. The reversal of 52646513 is 31564625.

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

It is an interprime number because it is at equal distance from previous prime (52646507) and next prime (52646519).

It can be written as a sum of positive squares in 2 ways, for example, as 37847104 + 14799409 = 6152^2 + 3847^2 .

It is a cyclic number.

It is not a de Polignac number, because 52646513 - 2⁸ = 52646257 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 52646513.

It is not an unprimeable number, because it can be changed into a prime (52646519) 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, 907670 + ... + 907727.

It is an arithmetic number, because the mean of its divisors is an integer number (13615485).

Almost surely, 2^52646513 is an apocalyptic number.

It is an amenable number.

52646513 is a deficient number, since it is larger than the sum of its proper divisors (1815427).

52646513 is a wasteful number, since it uses less digits than its factorization.

52646513 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1815426.

The product of its digits is 21600, while the sum is 32.

The square root of 52646513 is about 7255.7916866459. The cubic root of 52646513 is about 374.7916187460.

The spelling of 52646513 in words is "fifty-two million, six hundred forty-six thousand, five hundred thirteen".