55060009 has 4 divisors (see below), whose sum is σ = 56958660. Its totient is φ = 53161360.

The previous prime is 55059973. The next prime is 55060021. The reversal of 55060009 is 90006055.

It is a happy number.

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 21187609 + 33872400 = 4603^2 + 5820^2 .

It is a cyclic number.

It is not a de Polignac number, because 55060009 - 2¹³ = 55051817 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (55060079) 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, 949282 + ... + 949339.

It is an arithmetic number, because the mean of its divisors is an integer number (14239665).

Almost surely, 2^55060009 is an apocalyptic number.

It is an amenable number.

55060009 is a deficient number, since it is larger than the sum of its proper divisors (1898651).

55060009 is a wasteful number, since it uses less digits than its factorization.

55060009 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1898650.

The product of its (nonzero) digits is 1350, while the sum is 25.

The square root of 55060009 is about 7420.2431900848. The cubic root of 55060009 is about 380.4335057283.

The spelling of 55060009 in words is "fifty-five million, sixty thousand, nine".