53505365538 has 8 divisors (see below), whose sum is σ = 107010731088. Its totient is φ = 17835121844.

The previous prime is 53505365533. The next prime is 53505365569. The reversal of 53505365538 is 83556350535.

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

53505365538 is an admirable number.

It is not an unprimeable number, because it can be changed into a prime (53505365533) 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, 4458780456 + ... + 4458780467.

It is an arithmetic number, because the mean of its divisors is an integer number (13376341386).

Almost surely, 2^53505365538 is an apocalyptic number.

53505365538 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

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

53505365538 is a wasteful number, since it uses less digits than its factorization.

53505365538 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8917560928.

The product of its (nonzero) digits is 4050000, while the sum is 48.

The spelling of 53505365538 in words is "fifty-three billion, five hundred five million, three hundred sixty-five thousand, five hundred thirty-eight".