55027311 has 4 divisors (see below), whose sum is σ = 73369752. Its totient is φ = 36684872.

The previous prime is 55027309. The next prime is 55027319. The reversal of 55027311 is 11372055.

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

It is a cyclic number.

It is not a de Polignac number, because 55027311 - 2¹ = 55027309 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (55027319) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 9171216 + ... + 9171221.

It is an arithmetic number, because the mean of its divisors is an integer number (18342438).

Almost surely, 2^55027311 is an apocalyptic number.

55027311 is a deficient number, since it is larger than the sum of its proper divisors (18342441).

55027311 is a wasteful number, since it uses less digits than its factorization.

55027311 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 18342440.

The product of its (nonzero) digits is 1050, while the sum is 24.

The square root of 55027311 is about 7418.0395658152. The cubic root of 55027311 is about 380.3581825901.

Adding to 55027311 its reverse (11372055), we get a palindrome (66399366).

The spelling of 55027311 in words is "fifty-five million, twenty-seven thousand, three hundred eleven".