27550555305 has 32 divisors (see below), whose sum is σ = 54253403904. Its totient is φ = 11625728256.

The previous prime is 27550555301. The next prime is 27550555369. The reversal of 27550555305 is 50355505572.

It is not a de Polignac number, because 27550555305 - 2² = 27550555301 is a prime.

It is a super-2 number, since 2×27550555305² (a number of 22 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (27550555301) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 10090414 + ... + 10093143.

It is an arithmetic number, because the mean of its divisors is an integer number (1695418872).

Almost surely, 2^27550555305 is an apocalyptic number.

It is an amenable number.

27550555305 is a deficient number, since it is larger than the sum of its proper divisors (26702848599).

27550555305 is a wasteful number, since it uses less digits than its factorization.

27550555305 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 20183585.

The product of its (nonzero) digits is 656250, while the sum is 42.

The spelling of 27550555305 in words is "twenty-seven billion, five hundred fifty million, five hundred fifty-five thousand, three hundred five".