55677823 has 2 divisors, whose sum is σ = 55677824. Its totient is φ = 55677822.

The previous prime is 55677821. The next prime is 55677851. The reversal of 55677823 is 32877655.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 55677823 - 2¹ = 55677821 is a prime.

Together with 55677821, it forms a pair of twin primes.

It is a self number, because there is not a number n which added to its sum of digits gives 55677823.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (55677821) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 27838911 + 27838912.

It is an arithmetic number, because the mean of its divisors is an integer number (27838912).

Almost surely, 2^55677823 is an apocalyptic number.

55677823 is a deficient number, since it is larger than the sum of its proper divisors (1).

55677823 is an equidigital number, since it uses as much as digits as its factorization.

55677823 is an evil number, because the sum of its binary digits is even.

The product of its digits is 352800, while the sum is 43.

The square root of 55677823 is about 7461.7573667334. The cubic root of 55677823 is about 381.8511316528.

The spelling of 55677823 in words is "fifty-five million, six hundred seventy-seven thousand, eight hundred twenty-three".