52003421566 has 32 divisors (see below), whose sum is σ = 84500703360. Its totient is φ = 23909001216.

The previous prime is 52003421551. The next prime is 52003421579. The reversal of 52003421566 is 66512430025.

It is a super-2 number, since 2×52003421566² (a number of 22 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (34).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 880666 + ... + 937858.

It is an arithmetic number, because the mean of its divisors is an integer number (2640646980).

Almost surely, 2^52003421566 is an apocalyptic number.

52003421566 is a deficient number, since it is larger than the sum of its proper divisors (32497281794).

52003421566 is a wasteful number, since it uses less digits than its factorization.

52003421566 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 57828.

The product of its (nonzero) digits is 43200, while the sum is 34.

The spelling of 52003421566 in words is "fifty-two billion, three million, four hundred twenty-one thousand, five hundred sixty-six".