52569561 has 16 divisors (see below), whose sum is σ = 80490240. Its totient is φ = 30183120.

The previous prime is 52569553. The next prime is 52569581. The reversal of 52569561 is 16596525.

It is not a de Polignac number, because 52569561 - 2³ = 52569553 is a prime.

It is not an unprimeable number, because it can be changed into a prime (52569581) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 41295 + ... + 42548.

It is an arithmetic number, because the mean of its divisors is an integer number (5030640).

Almost surely, 2^52569561 is an apocalyptic number.

It is an amenable number.

52569561 is a deficient number, since it is larger than the sum of its proper divisors (27920679).

52569561 is a wasteful number, since it uses less digits than its factorization.

52569561 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 83876.

The product of its digits is 81000, while the sum is 39.

The square root of 52569561 is about 7250.4869491642. The cubic root of 52569561 is about 374.6089220744.

The spelling of 52569561 in words is "fifty-two million, five hundred sixty-nine thousand, five hundred sixty-one".