53452221136 has 20 divisors (see below), whose sum is σ = 103567450500. Its totient is φ = 26725137152.

The previous prime is 53452221103. The next prime is 53452221139. The reversal of 53452221136 is 63112225435.

It can be written as a sum of positive squares in 2 ways, for example, as 38081180736 + 15371040400 = 195144^2 + 123980^2 .

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (53452221139) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 629670 + ... + 709498.

It is an arithmetic number, because the mean of its divisors is an integer number (5178372525).

Almost surely, 2^53452221136 is an apocalyptic number.

It is an amenable number.

53452221136 is a deficient number, since it is larger than the sum of its proper divisors (50115229364).

53452221136 is a wasteful number, since it uses less digits than its factorization.

53452221136 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 121686 (or 121680 counting only the distinct ones).

The product of its digits is 43200, while the sum is 34.

The spelling of 53452221136 in words is "fifty-three billion, four hundred fifty-two million, two hundred twenty-one thousand, one hundred thirty-six".