53321089536 has 800 divisors, whose sum is σ = 192816283968. Its totient is φ = 14511882240.

The previous prime is 53321089517. The next prime is 53321089553. The reversal of 53321089536 is 63598012335.

It is a happy number.

53321089536 is a `hidden beast` number, since 5 + 3 + 3 + 2 + 108 + 9 + 536 = 666.

It is a super-2 number, since 2×53321089536² (a number of 22 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 53321089491 and 53321089500.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 79 ways as a sum of consecutive naturals, for example, 1441110510 + ... + 1441110546.

Almost surely, 2^53321089536 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 53321089536, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (96408141984).

53321089536 is an abundant number, since it is smaller than the sum of its proper divisors (139495194432).

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

53321089536 is an frugal number, since it uses more digits than its factorization.

53321089536 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 106 (or 66 counting only the distinct ones).

The product of its (nonzero) digits is 583200, while the sum is 45.

The spelling of 53321089536 in words is "fifty-three billion, three hundred twenty-one million, eighty-nine thousand, five hundred thirty-six".