54979823 has 2 divisors, whose sum is σ = 54979824. Its totient is φ = 54979822.

The previous prime is 54979789. The next prime is 54979831. The reversal of 54979823 is 32897945.

It is a happy number.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 54979823 - 2¹⁶ = 54914287 is a prime.

It is a super-2 number, since 2×54979823² = 6045561874222658, which contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (54939823) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 27489911 + 27489912.

It is an arithmetic number, because the mean of its divisors is an integer number (27489912).

Almost surely, 2^54979823 is an apocalyptic number.

54979823 is a deficient number, since it is larger than the sum of its proper divisors (1).

54979823 is an equidigital number, since it uses as much as digits as its factorization.

54979823 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 544320, while the sum is 47.

The square root of 54979823 is about 7414.8380292492. The cubic root of 54979823 is about 380.2487360417.

The spelling of 54979823 in words is "fifty-four million, nine hundred seventy-nine thousand, eight hundred twenty-three".