55444007 has 8 divisors (see below), whose sum is σ = 58029696. Its totient is φ = 52872952.

The previous prime is 55444001. The next prime is 55444031. The reversal of 55444007 is 70044455.

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

It is not a de Polignac number, because 55444007 - 2⁴ = 55443991 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 (55444001) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 4508 + ... + 11454.

It is an arithmetic number, because the mean of its divisors is an integer number (7253712).

Almost surely, 2^55444007 is an apocalyptic number.

55444007 is a deficient number, since it is larger than the sum of its proper divisors (2585689).

55444007 is a wasteful number, since it uses less digits than its factorization.

55444007 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7317.

The product of its (nonzero) digits is 11200, while the sum is 29.

The square root of 55444007 is about 7446.0732604508. The cubic root of 55444007 is about 381.3158606277.

The spelling of 55444007 in words is "fifty-five million, four hundred forty-four thousand, seven".