53303223250566 has 96 divisors (see below), whose sum is σ = 121505074423200. Its totient is φ = 16863273530880.

The previous prime is 53303223250561. The next prime is 53303223250601. The reversal of 53303223250566 is 66505232230335.

53303223250566 is a `hidden beast` number, since 5 + 3 + 3 + 0 + 3 + 2 + 2 + 32 + 50 + 566 = 666.

It is a super-2 number, since 2×53303223250566² (a number of 28 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (53303223250561) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 630608386 + ... + 630692906.

It is an arithmetic number, because the mean of its divisors is an integer number (1265677858575).

Almost surely, 2^{53303223250566} is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 53303223250566, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (60752537211600).

53303223250566 is an abundant number, since it is smaller than the sum of its proper divisors (68201851172634).

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

53303223250566 is a wasteful number, since it uses less digits than its factorization.

53303223250566 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 105094 (or 105091 counting only the distinct ones).

The product of its (nonzero) digits is 2916000, while the sum is 45.

The spelling of 53303223250566 in words is "fifty-three trillion, three hundred three billion, two hundred twenty-three million, two hundred fifty thousand, five hundred sixty-six".