52530603990 has 64 divisors (see below), whose sum is σ = 127456735680. Its totient is φ = 13854758400.

The previous prime is 52530603977. The next prime is 52530603991. The reversal of 52530603990 is 9930603525.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (52530603991) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 3012216 + ... + 3029604.

It is an arithmetic number, because the mean of its divisors is an integer number (1991511495).

Almost surely, 2^52530603990 is an apocalyptic number.

52530603990 is an abundant number, since it is smaller than the sum of its proper divisors (74926131690).

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

52530603990 is a wasteful number, since it uses less digits than its factorization.

52530603990 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 18497.

The product of its (nonzero) digits is 218700, while the sum is 42.

The spelling of 52530603990 in words is "fifty-two billion, five hundred thirty million, six hundred three thousand, nine hundred ninety".