55440199 has 8 divisors (see below), whose sum is σ = 57807360. Its totient is φ = 53103456.

The previous prime is 55440197. The next prime is 55440211. The reversal of 55440199 is 99104455.

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

It is a cyclic number.

It is not a de Polignac number, because 55440199 - 2¹ = 55440197 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 (55440197) 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, 3844 + ... + 11209.

It is an arithmetic number, because the mean of its divisors is an integer number (7225920).

Almost surely, 2^55440199 is an apocalyptic number.

55440199 is a deficient number, since it is larger than the sum of its proper divisors (2367161).

55440199 is a wasteful number, since it uses less digits than its factorization.

55440199 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 15209.

The product of its (nonzero) digits is 32400, while the sum is 37.

The square root of 55440199 is about 7445.8175508133. The cubic root of 55440199 is about 381.3071305947.

The spelling of 55440199 in words is "fifty-five million, four hundred forty thousand, one hundred ninety-nine".