253540204044 has 24 divisors (see below), whose sum is σ = 591602875248. Its totient is φ = 84512106240.

The previous prime is 253540203971. The next prime is 253540204081. The reversal of 253540204044 is 440402045352.

It is a junction number, because it is equal to n+sod(n) for n = 253540203996 and 253540204014.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 970824 + ... + 1203984.

It is an arithmetic number, because the mean of its divisors is an integer number (24650119802).

Almost surely, 2^253540204044 is an apocalyptic number.

It is an amenable number.

253540204044 is an abundant number, since it is smaller than the sum of its proper divisors (338062671204).

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

253540204044 is a wasteful number, since it uses less digits than its factorization.

253540204044 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 323785 (or 323783 counting only the distinct ones).

The product of its (nonzero) digits is 76800, while the sum is 33.

Adding to 253540204044 its reverse (440402045352), we get a palindrome (693942249396).

The spelling of 253540204044 in words is "two hundred fifty-three billion, five hundred forty million, two hundred four thousand, forty-four".