55099443 has 8 divisors (see below), whose sum is σ = 83961088. Its totient is φ = 31485384.

The previous prime is 55099441. The next prime is 55099453. The reversal of 55099443 is 34499055.

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

It is not a de Polignac number, because 55099443 - 2¹ = 55099441 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (55099441) 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, 1311871 + ... + 1311912.

It is an arithmetic number, because the mean of its divisors is an integer number (10495136).

Almost surely, 2^55099443 is an apocalyptic number.

55099443 is a deficient number, since it is larger than the sum of its proper divisors (28861645).

55099443 is a wasteful number, since it uses less digits than its factorization.

55099443 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2623793.

The product of its (nonzero) digits is 97200, while the sum is 39.

The square root of 55099443 is about 7422.8999050236. The cubic root of 55099443 is about 380.5243062632.

The spelling of 55099443 in words is "fifty-five million, ninety-nine thousand, four hundred forty-three".