55282909 has 4 divisors (see below), whose sum is σ = 60308640. Its totient is φ = 50257180.

The previous prime is 55282901. The next prime is 55282933. The reversal of 55282909 is 90928255.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 55282909 - 2³ = 55282901 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 (55282901) 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, 2512849 + ... + 2512870.

It is an arithmetic number, because the mean of its divisors is an integer number (15077160).

Almost surely, 2^55282909 is an apocalyptic number.

It is an amenable number.

55282909 is a deficient number, since it is larger than the sum of its proper divisors (5025731).

55282909 is a wasteful number, since it uses less digits than its factorization.

55282909 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5025730.

The product of its (nonzero) digits is 64800, while the sum is 40.

The square root of 55282909 is about 7435.2477430144. The cubic root of 55282909 is about 380.9461854769.

The spelling of 55282909 in words is "fifty-five million, two hundred eighty-two thousand, nine hundred nine".