53108783280 has 360 divisors, whose sum is σ = 218399079600. Its totient is φ = 11500102656.

The previous prime is 53108783219. The next prime is 53108783303. The reversal of 53108783280 is 8238780135.

53108783280 is a `hidden beast` number, since 5 + 310 + 8 + 7 + 8 + 328 + 0 = 666.

53108783280 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a tau number, because it is divible by the number of its divisors (360).

It is a super-2 number, since 2×53108783280² (a number of 22 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (45).

It is an unprimeable number.

It is a polite number, since it can be written in 71 ways as a sum of consecutive naturals, for example, 630706 + ... + 709934.

It is an arithmetic number, because the mean of its divisors is an integer number (606664110).

Almost surely, 2^53108783280 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 53108783280, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (109199539800).

53108783280 is an abundant number, since it is smaller than the sum of its proper divisors (165290296320).

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

53108783280 is a wasteful number, since it uses less digits than its factorization.

53108783280 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 79281 (or 79265 counting only the distinct ones).

The product of its (nonzero) digits is 322560, while the sum is 45.

The spelling of 53108783280 in words is "fifty-three billion, one hundred eight million, seven hundred eighty-three thousand, two hundred eighty".