53635566852 has 240 divisors, whose sum is σ = 164464578432. Its totient is φ = 14923077120.

The previous prime is 53635566847. The next prime is 53635566893. The reversal of 53635566852 is 25866553635.

53635566852 is a `hidden beast` number, since 5 + 3 + 6 + 3 + 556 + 6 + 85 + 2 = 666.

It is a super-2 number, since 2×53635566852² (a number of 22 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (54).

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 79 ways as a sum of consecutive naturals, for example, 44957968 + ... + 44959160.

Almost surely, 2^53635566852 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 53635566852, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (82232289216).

53635566852 is an abundant number, since it is smaller than the sum of its proper divisors (110829011580).

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

53635566852 is a wasteful number, since it uses less digits than its factorization.

53635566852 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1720 (or 1709 counting only the distinct ones).

The product of its digits is 19440000, while the sum is 54.

The spelling of 53635566852 in words is "fifty-three billion, six hundred thirty-five million, five hundred sixty-six thousand, eight hundred fifty-two".