55259009 has 8 divisors (see below), whose sum is σ = 59570112. Its totient is φ = 50956560.

The previous prime is 55258997. The next prime is 55259051. The reversal of 55259009 is 90095255.

55259009 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 a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-55259009 is a prime.

It is a super-4 number, since 4×55259009⁴ (a number of 32 digits) contains 4444 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 55259009.

It is not an unprimeable number, because it can be changed into a prime (55259089) 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 7 ways as a sum of consecutive naturals, for example, 18404 + ... + 21194.

It is an arithmetic number, because the mean of its divisors is an integer number (7446264).

Almost surely, 2^55259009 is an apocalyptic number.

It is an amenable number.

55259009 is a deficient number, since it is larger than the sum of its proper divisors (4311103).

55259009 is a wasteful number, since it uses less digits than its factorization.

55259009 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4327.

The product of its (nonzero) digits is 20250, while the sum is 35.

The square root of 55259009 is about 7433.6403598775. The cubic root of 55259009 is about 380.8912804658.

The spelling of 55259009 in words is "fifty-five million, two hundred fifty-nine thousand, nine".