53551433304 has 192 divisors, whose sum is σ = 155699107200. Its totient is φ = 16568451072.

The previous prime is 53551433297. The next prime is 53551433323. The reversal of 53551433304 is 40333415535.

53551433304 is a `hidden beast` number, since 535 + 51 + 43 + 3 + 30 + 4 = 666.

53551433304 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a super-3 number, since 3×53551433304³ (a number of 33 digits) contains 333 as substring.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a congruent number.

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, 43572562 + ... + 43573790.

It is an arithmetic number, because the mean of its divisors is an integer number (810932850).

Almost surely, 2^53551433304 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 53551433304, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (77849553600).

53551433304 is an abundant number, since it is smaller than the sum of its proper divisors (102147673896).

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

53551433304 is a wasteful number, since it uses less digits than its factorization.

53551433304 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1722 (or 1715 counting only the distinct ones).

The product of its (nonzero) digits is 162000, while the sum is 36.

Adding to 53551433304 its reverse (40333415535), we get a palindrome (93884848839).

The spelling of 53551433304 in words is "fifty-three billion, five hundred fifty-one million, four hundred thirty-three thousand, three hundred four".