52405569 has 16 divisors (see below), whose sum is σ = 81014400. Its totient is φ = 33417648.

The previous prime is 52405547. The next prime is 52405589. The reversal of 52405569 is 96550425.

52405569 is a `hidden beast` number, since 52 + 40 + 5 + 569 = 666.

52405569 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 52405569 - 2²⁰ = 51356993 is a prime.

It is a super-2 number, since 2×52405569² = 5492687324427522, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (52405589) 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 15 ways as a sum of consecutive naturals, for example, 41574 + ... + 42815.

It is an arithmetic number, because the mean of its divisors is an integer number (5063400).

Almost surely, 2^52405569 is an apocalyptic number.

It is an amenable number.

52405569 is a deficient number, since it is larger than the sum of its proper divisors (28608831).

52405569 is a wasteful number, since it uses less digits than its factorization.

52405569 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 84421 (or 84415 counting only the distinct ones).

The product of its (nonzero) digits is 54000, while the sum is 36.

The square root of 52405569 is about 7239.1690821530. The cubic root of 52405569 is about 374.2189824937.

The spelling of 52405569 in words is "fifty-two million, four hundred five thousand, five hundred sixty-nine".