54185933 has 2 divisors, whose sum is σ = 54185934. Its totient is φ = 54185932.

The previous prime is 54185869. The next prime is 54185939. The reversal of 54185933 is 33958145.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 33953929 + 20232004 = 5827^2 + 4498^2 .

It is a cyclic number.

It is not a de Polignac number, because 54185933 - 2⁶ = 54185869 is a prime.

It is a super-2 number, since 2×54185933² = 5872230670160978, which contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (54185939) 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, 27092966 + 27092967.

It is an arithmetic number, because the mean of its divisors is an integer number (27092967).

Almost surely, 2^54185933 is an apocalyptic number.

It is an amenable number.

54185933 is a deficient number, since it is larger than the sum of its proper divisors (1).

54185933 is an equidigital number, since it uses as much as digits as its factorization.

54185933 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 64800, while the sum is 38.

The square root of 54185933 is about 7361.1094951780. The cubic root of 54185933 is about 378.4096344951.

The spelling of 54185933 in words is "fifty-four million, one hundred eighty-five thousand, nine hundred thirty-three".