52503643 has 4 divisors (see below), whose sum is σ = 52608528. Its totient is φ = 52398760.

The previous prime is 52503623. The next prime is 52503683. The reversal of 52503643 is 34630525.

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 52503643 - 2¹³ = 52495451 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (52503613) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 51688 + ... + 52693.

It is an arithmetic number, because the mean of its divisors is an integer number (13152132).

Almost surely, 2^52503643 is an apocalyptic number.

52503643 is a deficient number, since it is larger than the sum of its proper divisors (104885).

52503643 is a wasteful number, since it uses less digits than its factorization.

52503643 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 104884.

The product of its (nonzero) digits is 10800, while the sum is 28.

The square root of 52503643 is about 7245.9397596171. The cubic root of 52503643 is about 374.4522801010.

The spelling of 52503643 in words is "fifty-two million, five hundred three thousand, six hundred forty-three".