52447513 has 4 divisors (see below), whose sum is σ = 52511760. Its totient is φ = 52383268.

The previous prime is 52447489. The next prime is 52447517. The reversal of 52447513 is 31574425.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 52447513 - 2²⁵ = 18893081 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (52447517) 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, 30883 + ... + 32536.

It is an arithmetic number, because the mean of its divisors is an integer number (13127940).

Almost surely, 2^52447513 is an apocalyptic number.

It is an amenable number.

52447513 is a deficient number, since it is larger than the sum of its proper divisors (64247).

52447513 is an equidigital number, since it uses as much as digits as its factorization.

52447513 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 64246.

The product of its digits is 16800, while the sum is 31.

The square root of 52447513 is about 7242.0655202780. The cubic root of 52447513 is about 374.3187941202.

The spelling of 52447513 in words is "fifty-two million, four hundred forty-seven thousand, five hundred thirteen".