53549157888 has 320 divisors, whose sum is σ = 175148075520. Its totient is φ = 16067690496.

The previous prime is 53549157887. The next prime is 53549157899. The reversal of 53549157888 is 88875194535.

53549157888 is a `hidden beast` number, since 5 + 3 + 54 + 9 + 1 + 578 + 8 + 8 = 666.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (53549157887) by changing a digit.

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 31 ways as a sum of consecutive naturals, for example, 5400231 + ... + 5410137.

It is an arithmetic number, because the mean of its divisors is an integer number (547337736).

Almost surely, 2^53549157888 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 53549157888, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (87574037760).

53549157888 is an abundant number, since it is smaller than the sum of its proper divisors (121598917632).

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

53549157888 is a wasteful number, since it uses less digits than its factorization.

53549157888 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9974 (or 9952 counting only the distinct ones).

The product of its digits is 48384000, while the sum is 63.

The spelling of 53549157888 in words is "fifty-three billion, five hundred forty-nine million, one hundred fifty-seven thousand, eight hundred eighty-eight".