55386811 has 4 divisors (see below), whose sum is σ = 55444824. Its totient is φ = 55328800.

The previous prime is 55386809. The next prime is 55386827. The reversal of 55386811 is 11868355.

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 55386811 - 2¹ = 55386809 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (55386871) 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, 27550 + ... + 29491.

It is an arithmetic number, because the mean of its divisors is an integer number (13861206).

Almost surely, 2^55386811 is an apocalyptic number.

55386811 is a deficient number, since it is larger than the sum of its proper divisors (58013).

55386811 is an equidigital number, since it uses as much as digits as its factorization.

55386811 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 58012.

The product of its digits is 28800, while the sum is 37.

The square root of 55386811 is about 7442.2315873668. The cubic root of 55386811 is about 381.1846937858.

The spelling of 55386811 in words is "fifty-five million, three hundred eighty-six thousand, eight hundred eleven".