55005277 has 4 divisors (see below), whose sum is σ = 55024380. Its totient is φ = 54986176.

The previous prime is 55005271. The next prime is 55005283. The reversal of 55005277 is 77250055.

55005277 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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

It is an interprime number because it is at equal distance from previous prime (55005271) and next prime (55005283).

It can be written as a sum of positive squares in 2 ways, for example, as 33419961 + 21585316 = 5781^2 + 4646^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-55005277 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 (55005271) by changing a digit.

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 3 ways as a sum of consecutive naturals, for example, 4252 + ... + 11317.

It is an arithmetic number, because the mean of its divisors is an integer number (13756095).

Almost surely, 2^55005277 is an apocalyptic number.

It is an amenable number.

55005277 is a deficient number, since it is larger than the sum of its proper divisors (19103).

55005277 is a wasteful number, since it uses less digits than its factorization.

55005277 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 19102.

The product of its (nonzero) digits is 12250, while the sum is 31.

The square root of 55005277 is about 7416.5542538297. The cubic root of 55005277 is about 380.3074082206.

The spelling of 55005277 in words is "fifty-five million, five thousand, two hundred seventy-seven".