27533553552 has 120 divisors (see below), whose sum is σ = 82579458624. Its totient is φ = 8541510912.

The previous prime is 27533553547. The next prime is 27533553569. The reversal of 27533553552 is 25535533572.

It is a hoax number, since the sum of its digits (45) coincides with the sum of the digits of its distinct prime factors.

It is a junction number, because it is equal to n+sod(n) for n = 27533553498 and 27533553507.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 10203 + ... + 234885.

Almost surely, 2^27533553552 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 27533553552, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (41289729312).

27533553552 is an abundant number, since it is smaller than the sum of its proper divisors (55045905072).

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

27533553552 is a wasteful number, since it uses less digits than its factorization.

27533553552 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 224757 (or 224748 counting only the distinct ones).

The product of its digits is 2362500, while the sum is 45.

The spelling of 27533553552 in words is "twenty-seven billion, five hundred thirty-three million, five hundred fifty-three thousand, five hundred fifty-two".