53955599808 has 168 divisors, whose sum is σ = 157866258816. Its totient is φ = 16251107840.

The previous prime is 53955599801. The next prime is 53955599879. The reversal of 53955599808 is 80899555935.

It is a super-2 number, since 2×53955599808² (a number of 22 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (66).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (53955599801) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 3872791 + ... + 3886697.

It is an arithmetic number, because the mean of its divisors is an integer number (939680112).

Almost surely, 2^53955599808 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 53955599808, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (78933129408).

53955599808 is an abundant number, since it is smaller than the sum of its proper divisors (103910659008).

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

53955599808 is a wasteful number, since it uses less digits than its factorization.

53955599808 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 14111 (or 14090 counting only the distinct ones).

The product of its (nonzero) digits is 87480000, while the sum is 66.

The spelling of 53955599808 in words is "fifty-three billion, nine hundred fifty-five million, five hundred ninety-nine thousand, eight hundred eight".