54992199 has 4 divisors (see below), whose sum is σ = 73322936. Its totient is φ = 36661464.

The previous prime is 54992191. The next prime is 54992219. The reversal of 54992199 is 99129945.

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

It is not a de Polignac number, because 54992199 - 2³ = 54992191 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 (54992191) 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, 9165364 + ... + 9165369.

It is an arithmetic number, because the mean of its divisors is an integer number (18330734).

Almost surely, 2^54992199 is an apocalyptic number.

54992199 is a deficient number, since it is larger than the sum of its proper divisors (18330737).

54992199 is a wasteful number, since it uses less digits than its factorization.

54992199 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 18330736.

The product of its digits is 262440, while the sum is 48.

The square root of 54992199 is about 7415.6725251322. The cubic root of 54992199 is about 380.2772653277.

The spelling of 54992199 in words is "fifty-four million, nine hundred ninety-two thousand, one hundred ninety-nine".