27550530552 has 64 divisors (see below), whose sum is σ = 71411788800. Its totient is φ = 8848062720.

The previous prime is 27550530541. The next prime is 27550530563. The reversal of 27550530552 is 25503505572.

It is an interprime number because it is at equal distance from previous prime (27550530541) and next prime (27550530563).

It is a self number, because there is not a number n which added to its sum of digits gives 27550530552.

It is a congruent number.

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, 87324 + ... + 250452.

It is an arithmetic number, because the mean of its divisors is an integer number (1115809200).

Almost surely, 2^27550530552 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 27550530552, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (35705894400).

27550530552 is an abundant number, since it is smaller than the sum of its proper divisors (43861258248).

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

27550530552 is a wasteful number, since it uses less digits than its factorization.

27550530552 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 163396 (or 163392 counting only the distinct ones).

The product of its (nonzero) digits is 262500, while the sum is 39.

The spelling of 27550530552 in words is "twenty-seven billion, five hundred fifty million, five hundred thirty thousand, five hundred fifty-two".