55443299 has 4 divisors (see below), whose sum is σ = 55467600. Its totient is φ = 55419000.

The previous prime is 55443287. The next prime is 55443301. The reversal of 55443299 is 99234455.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 99234455 = 5 ⋅19846891.

It is a cyclic number.

It is not a de Polignac number, because 55443299 - 2²⁰ = 54394723 is a prime.

It is a Duffinian number.

Its product of digits (194400) is a multiple of the sum of its prime divisors (24300).

It is not an unprimeable number, because it can be changed into a prime (55443209) 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, 8327 + ... + 13424.

It is an arithmetic number, because the mean of its divisors is an integer number (13866900).

Almost surely, 2^55443299 is an apocalyptic number.

55443299 is a deficient number, since it is larger than the sum of its proper divisors (24301).

55443299 is a wasteful number, since it uses less digits than its factorization.

55443299 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 24300.

The product of its digits is 194400, while the sum is 41.

The square root of 55443299 is about 7446.0257184622. The cubic root of 55443299 is about 381.3142375321.

The spelling of 55443299 in words is "fifty-five million, four hundred forty-three thousand, two hundred ninety-nine".