53455378944 has 160 divisors (see below), whose sum is σ = 155574042624. Its totient is φ = 16175738880.

The previous prime is 53455378939. The next prime is 53455378961. The reversal of 53455378944 is 44987355435.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 14917377 + ... + 14920959.

Almost surely, 2^53455378944 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 53455378944, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (77787021312).

53455378944 is an abundant number, since it is smaller than the sum of its proper divisors (102118663680).

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

53455378944 is a wasteful number, since it uses less digits than its factorization.

53455378944 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4498 (or 4482 counting only the distinct ones).

The product of its digits is 36288000, while the sum is 57.

The spelling of 53455378944 in words is "fifty-three billion, four hundred fifty-five million, three hundred seventy-eight thousand, nine hundred forty-four".