53440788169 has 8 divisors (see below), whose sum is σ = 53673218720. Its totient is φ = 53208446400.

The previous prime is 53440788157. The next prime is 53440788211. The reversal of 53440788169 is 96188704435.

53440788169 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 53440788169 - 2⁷ = 53440788041 is a prime.

It is a super-2 number, since 2×53440788169² (a number of 22 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (53440788139) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1373554 + ... + 1411924.

It is an arithmetic number, because the mean of its divisors is an integer number (6709152340).

Almost surely, 2^53440788169 is an apocalyptic number.

It is an amenable number.

53440788169 is a deficient number, since it is larger than the sum of its proper divisors (232430551).

53440788169 is a wasteful number, since it uses less digits than its factorization.

53440788169 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 44391.

The product of its (nonzero) digits is 5806080, while the sum is 55.

The spelling of 53440788169 in words is "fifty-three billion, four hundred forty million, seven hundred eighty-eight thousand, one hundred sixty-nine".