55707009 has 8 divisors (see below), whose sum is σ = 74365920. Its totient is φ = 37093056.

The previous prime is 55707007. The next prime is 55707017. The reversal of 55707009 is 90070755.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 55707009 - 2¹ = 55707007 is a prime.

It is not an unprimeable number, because it can be changed into a prime (55707007) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 8232 + ... + 13385.

It is an arithmetic number, because the mean of its divisors is an integer number (9295740).

Almost surely, 2^55707009 is an apocalyptic number.

It is an amenable number.

55707009 is a deficient number, since it is larger than the sum of its proper divisors (18658911).

55707009 is a wasteful number, since it uses less digits than its factorization.

55707009 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 22479.

The product of its (nonzero) digits is 11025, while the sum is 33.

The square root of 55707009 is about 7463.7128160186. The cubic root of 55707009 is about 381.9178413992.

The spelling of 55707009 in words is "fifty-five million, seven hundred seven thousand, nine".