52405566 has 16 divisors (see below), whose sum is σ = 104882688. Its totient is φ = 17456600.

The previous prime is 52405547. The next prime is 52405589. The reversal of 52405566 is 66550425.

It is a happy number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 13861 + ... + 17231.

It is an arithmetic number, because the mean of its divisors is an integer number (6555168).

Almost surely, 2^52405566 is an apocalyptic number.

52405566 is an abundant number, since it is smaller than the sum of its proper divisors (52477122).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

52405566 is a wasteful number, since it uses less digits than its factorization.

52405566 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5967.

The product of its (nonzero) digits is 36000, while the sum is 33.

The square root of 52405566 is about 7239.1688749469. The cubic root of 52405566 is about 374.2189753529.

The spelling of 52405566 in words is "fifty-two million, four hundred five thousand, five hundred sixty-six".