52561279 has 4 divisors (see below), whose sum is σ = 54846576. Its totient is φ = 50275984.

The previous prime is 52561247. The next prime is 52561343. The reversal of 52561279 is 97216525.

52561279 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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 52561279 - 2⁵ = 52561247 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 (52561219) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1142614 + ... + 1142659.

It is an arithmetic number, because the mean of its divisors is an integer number (13711644).

Almost surely, 2^52561279 is an apocalyptic number.

52561279 is a deficient number, since it is larger than the sum of its proper divisors (2285297).

52561279 is a wasteful number, since it uses less digits than its factorization.

52561279 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2285296.

The product of its digits is 37800, while the sum is 37.

The square root of 52561279 is about 7249.9157926144. The cubic root of 52561279 is about 374.5892486235.

The spelling of 52561279 in words is "fifty-two million, five hundred sixty-one thousand, two hundred seventy-nine".