55255711 has 4 divisors (see below), whose sum is σ = 63149392. Its totient is φ = 47362032.

The previous prime is 55255709. The next prime is 55255721. The reversal of 55255711 is 11755255.

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 55255711 - 2¹ = 55255709 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (55255721) 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, 3946830 + ... + 3946843.

It is an arithmetic number, because the mean of its divisors is an integer number (15787348).

Almost surely, 2^55255711 is an apocalyptic number.

55255711 is a deficient number, since it is larger than the sum of its proper divisors (7893681).

55255711 is an equidigital number, since it uses as much as digits as its factorization.

55255711 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7893680.

The product of its digits is 8750, while the sum is 31.

The square root of 55255711 is about 7433.4185271650. The cubic root of 55255711 is about 380.8837027908.

It can be divided in two parts, 5525 and 5711, that added together give a square (11236 = 106²).

The spelling of 55255711 in words is "fifty-five million, two hundred fifty-five thousand, seven hundred eleven".