52643147 has 4 divisors (see below), whose sum is σ = 53364360. Its totient is φ = 51921936.

The previous prime is 52643117. The next prime is 52643153. The reversal of 52643147 is 74134625.

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

It is a cyclic number.

It is not a de Polignac number, because 52643147 - 2⁶ = 52643083 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (52643117) 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, 360497 + ... + 360642.

It is an arithmetic number, because the mean of its divisors is an integer number (13341090).

Almost surely, 2^52643147 is an apocalyptic number.

52643147 is a deficient number, since it is larger than the sum of its proper divisors (721213).

52643147 is an equidigital number, since it uses as much as digits as its factorization.

52643147 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 721212.

The product of its digits is 20160, while the sum is 32.

The square root of 52643147 is about 7255.5597303034. The cubic root of 52643147 is about 374.7836310345.

The spelling of 52643147 in words is "fifty-two million, six hundred forty-three thousand, one hundred forty-seven".