55444089 has 16 divisors (see below), whose sum is σ = 80801280. Its totient is φ = 33665280.

The previous prime is 55444073. The next prime is 55444091. The reversal of 55444089 is 98044455.

It is not a de Polignac number, because 55444089 - 2⁴ = 55444073 is a prime.

It is not an unprimeable number, because it can be changed into a prime (55444589) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 15954 + ... + 19115.

It is an arithmetic number, because the mean of its divisors is an integer number (5050080).

Almost surely, 2^55444089 is an apocalyptic number.

It is an amenable number.

55444089 is a deficient number, since it is larger than the sum of its proper divisors (25357191).

55444089 is a wasteful number, since it uses less digits than its factorization.

55444089 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 35120.

The product of its (nonzero) digits is 115200, while the sum is 39.

The square root of 55444089 is about 7446.0787667067. The cubic root of 55444089 is about 381.3160486125.

The spelling of 55444089 in words is "fifty-five million, four hundred forty-four thousand, eighty-nine".