53546220432 has 120 divisors (see below), whose sum is σ = 158615125760. Its totient is φ = 16815755520.

The previous prime is 53546220401. The next prime is 53546220433. The reversal of 53546220432 is 23402264535.

53546220432 is a `hidden beast` number, since 53 + 546 + 2 + 20 + 43 + 2 = 666.

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

It is not an unprimeable number, because it can be changed into a prime (53546220433) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 441153 + ... + 549279.

Almost surely, 2^53546220432 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 53546220432, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (79307562880).

53546220432 is an abundant number, since it is smaller than the sum of its proper divisors (105068905328).

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

53546220432 is a wasteful number, since it uses less digits than its factorization.

53546220432 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 108341 (or 108332 counting only the distinct ones).

The product of its (nonzero) digits is 172800, while the sum is 36.

Adding to 53546220432 its reverse (23402264535), we get a palindrome (76948484967).

The spelling of 53546220432 in words is "fifty-three billion, five hundred forty-six million, two hundred twenty thousand, four hundred thirty-two".