55227777 has 8 divisors (see below), whose sum is σ = 80331360. Its totient is φ = 33471360.

The previous prime is 55227751. The next prime is 55227787. The reversal of 55227777 is 77772255.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 55227777 - 2⁸ = 55227521 is a prime.

It is a Smith number, since the sum of its digits (42) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a zygodrome in base 10.

It is not an unprimeable number, because it can be changed into a prime (55227707) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 836752 + ... + 836817.

It is an arithmetic number, because the mean of its divisors is an integer number (10041420).

Almost surely, 2^55227777 is an apocalyptic number.

It is an amenable number.

55227777 is a deficient number, since it is larger than the sum of its proper divisors (25103583).

55227777 is a wasteful number, since it uses less digits than its factorization.

55227777 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1673583.

The product of its digits is 240100, while the sum is 42.

The square root of 55227777 is about 7431.5393425588. The cubic root of 55227777 is about 380.8195079255.

The spelling of 55227777 in words is "fifty-five million, two hundred twenty-seven thousand, seven hundred seventy-seven".