27550028029 has 4 divisors (see below), whose sum is σ = 27664343740. Its totient is φ = 27435712320.

The previous prime is 27550028027. The next prime is 27550028039. The reversal of 27550028029 is 92082005572.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 21936572100 + 5613455929 = 148110^2 + 74923^2 .

It is a cyclic number.

It is not a de Polignac number, because 27550028029 - 2¹ = 27550028027 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 27550027982 and 27550028000.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (27550028027) 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 3 ways as a sum of consecutive naturals, for example, 57157494 + ... + 57157975.

It is an arithmetic number, because the mean of its divisors is an integer number (6916085935).

Almost surely, 2^27550028029 is an apocalyptic number.

It is an amenable number.

27550028029 is a deficient number, since it is larger than the sum of its proper divisors (114315711).

27550028029 is a wasteful number, since it uses less digits than its factorization.

27550028029 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 114315710.

The product of its (nonzero) digits is 100800, while the sum is 40.

The spelling of 27550028029 in words is "twenty-seven billion, five hundred fifty million, twenty-eight thousand, twenty-nine".