27555550801 has 16 divisors (see below), whose sum is σ = 29682885888. Its totient is φ = 25485292800.

The previous prime is 27555550787. The next prime is 27555550843. The reversal of 27555550801 is 10805555572.

It is a cyclic number.

It is not a de Polignac number, because 27555550801 - 2²³ = 27547162193 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (27555550301) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1131766 + ... + 1155856.

It is an arithmetic number, because the mean of its divisors is an integer number (1855180368).

Almost surely, 2^27555550801 is an apocalyptic number.

It is an amenable number.

27555550801 is a deficient number, since it is larger than the sum of its proper divisors (2127335087).

27555550801 is a wasteful number, since it uses less digits than its factorization.

27555550801 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 25272.

The product of its (nonzero) digits is 350000, while the sum is 43.

The spelling of 27555550801 in words is "twenty-seven billion, five hundred fifty-five million, five hundred fifty thousand, eight hundred one".