27551155502 has 48 divisors (see below), whose sum is σ = 47332842480. Its totient is φ = 11953969152.

The previous prime is 27551155501. The next prime is 27551155529. The reversal of 27551155502 is 20555115572.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (27551155501) 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 23 ways as a sum of consecutive naturals, for example, 8917574 + ... + 8920662.

It is an arithmetic number, because the mean of its divisors is an integer number (986100885).

Almost surely, 2^27551155502 is an apocalyptic number.

27551155502 is a deficient number, since it is larger than the sum of its proper divisors (19781686978).

27551155502 is a wasteful number, since it uses less digits than its factorization.

27551155502 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4325 (or 4308 counting only the distinct ones).

The product of its (nonzero) digits is 87500, while the sum is 38.

The spelling of 27551155502 in words is "twenty-seven billion, five hundred fifty-one million, one hundred fifty-five thousand, five hundred two".