53281696320 has 336 divisors, whose sum is σ = 190518531840. Its totient is φ = 14173802496.

The previous prime is 53281696313. The next prime is 53281696343. The reversal of 53281696320 is 2369618235.

53281696320 is a `hidden beast` number, since 5 + 3 + 2 + 8 + 1 + 6 + 9 + 632 + 0 = 666.

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 47 ways as a sum of consecutive naturals, for example, 55908964 + ... + 55909916.

It is an arithmetic number, because the mean of its divisors is an integer number (567019440).

Almost surely, 2^53281696320 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 53281696320, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (95259265920).

53281696320 is an abundant number, since it is smaller than the sum of its proper divisors (137236835520).

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

53281696320 is an equidigital number, since it uses as much as digits as its factorization.

53281696320 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1704 (or 1682 counting only the distinct ones).

The product of its (nonzero) digits is 466560, while the sum is 45.

The spelling of 53281696320 in words is "fifty-three billion, two hundred eighty-one million, six hundred ninety-six thousand, three hundred twenty".