55444099 has 4 divisors (see below), whose sum is σ = 57854736. Its totient is φ = 53033464.

The previous prime is 55444091. The next prime is 55444111. The reversal of 55444099 is 99044455.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 55444099 - 2³ = 55444091 is a prime.

It is a super-2 number, since 2×55444099² = 6148096227843602, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (55444091) 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, 1205284 + ... + 1205329.

It is an arithmetic number, because the mean of its divisors is an integer number (14463684).

Almost surely, 2^55444099 is an apocalyptic number.

55444099 is a deficient number, since it is larger than the sum of its proper divisors (2410637).

55444099 is a wasteful number, since it uses less digits than its factorization.

55444099 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2410636.

The product of its (nonzero) digits is 129600, while the sum is 40.

The square root of 55444099 is about 7446.0794382010. The cubic root of 55444099 is about 381.3160715374.

The spelling of 55444099 in words is "fifty-five million, four hundred forty-four thousand, ninety-nine".