53236405560 has 256 divisors, whose sum is σ = 178548572160. Its totient is φ = 12614215680.

The previous prime is 53236405543. The next prime is 53236405561. The reversal of 53236405560 is 6550463235.

It is a super-2 number, since 2×53236405560² (a number of 22 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (39).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (53236405561) by changing a digit.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 4466569 + ... + 4478471.

It is an arithmetic number, because the mean of its divisors is an integer number (697455360).

Almost surely, 2^53236405560 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 53236405560, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (89274286080).

53236405560 is an abundant number, since it is smaller than the sum of its proper divisors (125312166600).

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

53236405560 is a wasteful number, since it uses less digits than its factorization.

53236405560 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12038 (or 12034 counting only the distinct ones).

The product of its (nonzero) digits is 324000, while the sum is 39.

Adding to 53236405560 its reverse (6550463235), we get a palindrome (59786868795).

The spelling of 53236405560 in words is "fifty-three billion, two hundred thirty-six million, four hundred five thousand, five hundred sixty".