53518959220 has 48 divisors (see below), whose sum is σ = 116234173440. Its totient is φ = 20686857984.

The previous prime is 53518959217. The next prime is 53518959301. The reversal of 53518959220 is 2295981535.

It is a happy number.

It is a congruent number.

It is an unprimeable number.

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 15 ways as a sum of consecutive naturals, for example, 286089 + ... + 434608.

It is an arithmetic number, because the mean of its divisors is an integer number (2421545280).

Almost surely, 2^53518959220 is an apocalyptic number.

It is an amenable number.

53518959220 is an abundant number, since it is smaller than the sum of its proper divisors (62715214220).

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

53518959220 is a wasteful number, since it uses less digits than its factorization.

53518959220 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 720832 (or 720830 counting only the distinct ones).

The product of its (nonzero) digits is 972000, while the sum is 49.

The spelling of 53518959220 in words is "fifty-three billion, five hundred eighteen million, nine hundred fifty-nine thousand, two hundred twenty".