54999911 has 2 divisors, whose sum is σ = 54999912. Its totient is φ = 54999910.

The previous prime is 54999907. The next prime is 54999929. The reversal of 54999911 is 11999945.

It is a happy number.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 54999911 - 2² = 54999907 is a prime.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (54999011) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 27499955 + 27499956.

It is an arithmetic number, because the mean of its divisors is an integer number (27499956).

Almost surely, 2^54999911 is an apocalyptic number.

54999911 is a deficient number, since it is larger than the sum of its proper divisors (1).

54999911 is an equidigital number, since it uses as much as digits as its factorization.

54999911 is an evil number, because the sum of its binary digits is even.

The product of its digits is 131220, while the sum is 47.

The square root of 54999911 is about 7416.1924867145. The cubic root of 54999911 is about 380.2950409471.

The spelling of 54999911 in words is "fifty-four million, nine hundred ninety-nine thousand, nine hundred eleven".