53285609657208 has 256 divisors, whose sum is σ = 143243251200000. Its totient is φ = 16468315573248.

The previous prime is 53285609657191. The next prime is 53285609657237. The reversal of 53285609657208 is 80275690658235.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 7049289733 + ... + 7049297291.

It is an arithmetic number, because the mean of its divisors is an integer number (559543950000).

Almost surely, 2^{53285609657208} 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 53285609657208, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (71621625600000).

53285609657208 is an abundant number, since it is smaller than the sum of its proper divisors (89957641542792).

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

53285609657208 is a wasteful number, since it uses less digits than its factorization.

53285609657208 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9122 (or 9118 counting only the distinct ones).

The product of its (nonzero) digits is 217728000, while the sum is 66.

The spelling of 53285609657208 in words is "fifty-three trillion, two hundred eighty-five billion, six hundred nine million, six hundred fifty-seven thousand, two hundred eight".