55805255 has 8 divisors (see below), whose sum is σ = 73054224. Its totient is φ = 40585600.

The previous prime is 55805249. The next prime is 55805293. The reversal of 55805255 is 55250855.

It is a happy number.

55805255 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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

It is not a de Polignac number, because 55805255 - 2¹² = 55801159 is a prime.

It is a super-2 number, since 2×55805255² = 6228452971230050, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 507266 + ... + 507375.

It is an arithmetic number, because the mean of its divisors is an integer number (9131778).

Almost surely, 2^55805255 is an apocalyptic number.

55805255 is a gapful number since it is divisible by the number (55) formed by its first and last digit.

55805255 is a deficient number, since it is larger than the sum of its proper divisors (17248969).

55805255 is a wasteful number, since it uses less digits than its factorization.

55805255 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1014657.

The product of its (nonzero) digits is 50000, while the sum is 35.

The square root of 55805255 is about 7470.2914936433. The cubic root of 55805255 is about 382.1422288649.

It can be divided in two parts, 55 and 805255, that multiplied together give a square (44289025 = 6655²).

The spelling of 55805255 in words is "fifty-five million, eight hundred five thousand, two hundred fifty-five".