53444985552 has 240 divisors, whose sum is σ = 184127643648. Its totient is φ = 14134728960.

The previous prime is 53444985541. The next prime is 53444985617. The reversal of 53444985552 is 25558944435.

53444985552 is a `hidden beast` number, since 5 + 3 + 4 + 4 + 4 + 9 + 85 + 552 = 666.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 681523 + ... + 755885.

Almost surely, 2^53444985552 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 53444985552, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (92063821824).

53444985552 is an abundant number, since it is smaller than the sum of its proper divisors (130682658096).

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

53444985552 is a wasteful number, since it uses less digits than its factorization.

53444985552 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 74438 (or 74429 counting only the distinct ones).

The product of its digits is 17280000, while the sum is 54.

The spelling of 53444985552 in words is "fifty-three billion, four hundred forty-four million, nine hundred eighty-five thousand, five hundred fifty-two".