53985269520 has 480 divisors, whose sum is σ = 226215854592. Its totient is φ = 11233271808.

The previous prime is 53985269501. The next prime is 53985269621. The reversal of 53985269520 is 2596258935.

53985269520 is a `hidden beast` number, since 5 + 3 + 9 + 8 + 52 + 69 + 520 = 666.

It is an unprimeable number.

It is a polite number, since it can be written in 95 ways as a sum of consecutive naturals, for example, 4777317 + ... + 4788603.

Almost surely, 2^53985269520 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 53985269520, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (113107927296).

53985269520 is an abundant number, since it is smaller than the sum of its proper divisors (172230585072).

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

53985269520 is a wasteful number, since it uses less digits than its factorization.

53985269520 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11399 (or 11390 counting only the distinct ones).

The product of its (nonzero) digits is 5832000, while the sum is 54.

The spelling of 53985269520 in words is "fifty-three billion, nine hundred eighty-five million, two hundred sixty-nine thousand, five hundred twenty".