52000400080 has 40 divisors (see below), whose sum is σ = 126157496832. Its totient is φ = 19895804544.

The previous prime is 52000400033. The next prime is 52000400083. The reversal of 52000400080 is 8000400025.

It is a happy number.

It is a tau number, because it is divible by the number of its divisors (40).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (52000400083) by changing a digit.

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 7 ways as a sum of consecutive naturals, for example, 14128704 + ... + 14132383.

Almost surely, 2^52000400080 is an apocalyptic number.

It is an amenable number.

52000400080 is an abundant number, since it is smaller than the sum of its proper divisors (74157096752).

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

52000400080 is a wasteful number, since it uses less digits than its factorization.

52000400080 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 28261123 (or 28261117 counting only the distinct ones).

The product of its (nonzero) digits is 320, while the sum is 19.

The spelling of 52000400080 in words is "fifty-two billion, four hundred thousand, eighty".