52561103 has 4 divisors (see below), whose sum is σ = 60069840. Its totient is φ = 45052368.

The previous prime is 52561097. The next prime is 52561111. The reversal of 52561103 is 30116525.

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 52561103 - 2²⁴ = 35783887 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (52561123) 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, 3754358 + ... + 3754371.

It is an arithmetic number, because the mean of its divisors is an integer number (15017460).

Almost surely, 2^52561103 is an apocalyptic number.

52561103 is a deficient number, since it is larger than the sum of its proper divisors (7508737).

52561103 is an equidigital number, since it uses as much as digits as its factorization.

52561103 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7508736.

The product of its (nonzero) digits is 900, while the sum is 23.

The square root of 52561103 is about 7249.9036545322. The cubic root of 52561103 is about 374.5888305224.

Adding to 52561103 its reverse (30116525), we get a palindrome (82677628).

The spelling of 52561103 in words is "fifty-two million, five hundred sixty-one thousand, one hundred three".