52561405000 has 80 divisors (see below), whose sum is σ = 132624718380. Its totient is φ = 19407264000.

The previous prime is 52561404911. The next prime is 52561405033. The reversal of 52561405000 is 50416525.

It can be written as a sum of positive squares in 10 ways, for example, as 7475677444 + 45085727556 = 86462^2 + 212334^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 52561405000.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 19 ways as a sum of consecutive naturals, for example, 339319 + ... + 469318.

Almost surely, 2^52561405000 is an apocalyptic number.

52561405000 is a gapful number since it is divisible by the number (50) formed by its first and last digit.

It is an amenable number.

52561405000 is an abundant number, since it is smaller than the sum of its proper divisors (80063313380).

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

52561405000 is a wasteful number, since it uses less digits than its factorization.

52561405000 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 808676 (or 808657 counting only the distinct ones).

The product of its (nonzero) digits is 6000, while the sum is 28.

The spelling of 52561405000 in words is "fifty-two billion, five hundred sixty-one million, four hundred five thousand".