55260305 has 4 divisors (see below), whose sum is σ = 66312372. Its totient is φ = 44208240.

The previous prime is 55260301. The next prime is 55260313. The reversal of 55260305 is 50306255.

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

It can be written as a sum of positive squares in 2 ways, for example, as 20638849 + 34621456 = 4543^2 + 5884^2 .

It is not a de Polignac number, because 55260305 - 2² = 55260301 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (55260301) 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, 5526026 + ... + 5526035.

It is an arithmetic number, because the mean of its divisors is an integer number (16578093).

Almost surely, 2^55260305 is an apocalyptic number.

It is an amenable number.

55260305 is a deficient number, since it is larger than the sum of its proper divisors (11052067).

55260305 is a wasteful number, since it uses less digits than its factorization.

55260305 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11052066.

The product of its (nonzero) digits is 4500, while the sum is 26.

The square root of 55260305 is about 7433.7275306538. The cubic root of 55260305 is about 380.8942581476.

The spelling of 55260305 in words is "fifty-five million, two hundred sixty thousand, three hundred five".