52561579 has 4 divisors (see below), whose sum is σ = 60070384. Its totient is φ = 45052776.

The previous prime is 52561573. The next prime is 52561583. The reversal of 52561579 is 97516525.

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 52561579 - 2⁷ = 52561451 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (52561573) 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, 3754392 + ... + 3754405.

It is an arithmetic number, because the mean of its divisors is an integer number (15017596).

Almost surely, 2^52561579 is an apocalyptic number.

52561579 is a deficient number, since it is larger than the sum of its proper divisors (7508805).

52561579 is an equidigital number, since it uses as much as digits as its factorization.

52561579 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7508804.

The product of its digits is 94500, while the sum is 40.

The square root of 52561579 is about 7249.9364824804. The cubic root of 52561579 is about 374.5899612936.

The spelling of 52561579 in words is "fifty-two million, five hundred sixty-one thousand, five hundred seventy-nine".