55116923 has 2 divisors, whose sum is σ = 55116924. Its totient is φ = 55116922.

The previous prime is 55116913. The next prime is 55116931. The reversal of 55116923 is 32961155.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 55116923 - 2¹⁰ = 55115899 is a prime.

It is equal to p_3288821 and since 55116923 and 3288821 have the same sum of digits, it is a Honaker prime.

It is a self number, because there is not a number n which added to its sum of digits gives 55116923.

It is not a weakly prime, because it can be changed into another prime (55116913) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 27558461 + 27558462.

It is an arithmetic number, because the mean of its divisors is an integer number (27558462).

Almost surely, 2^55116923 is an apocalyptic number.

55116923 is a deficient number, since it is larger than the sum of its proper divisors (1).

55116923 is an equidigital number, since it uses as much as digits as its factorization.

55116923 is an evil number, because the sum of its binary digits is even.

The product of its digits is 8100, while the sum is 32.

The square root of 55116923 is about 7424.0772490593. The cubic root of 55116923 is about 380.5645417674.

The spelling of 55116923 in words is "fifty-five million, one hundred sixteen thousand, nine hundred twenty-three".