54471191 has 2 divisors, whose sum is σ = 54471192. Its totient is φ = 54471190.

The previous prime is 54471173. The next prime is 54471217. The reversal of 54471191 is 19117445.

It is a happy number.

It is a weak prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-54471191 is a prime.

It is a super-2 number, since 2×54471191² = 5934221297916962, which contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (54471161) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 27235595 + 27235596.

It is an arithmetic number, because the mean of its divisors is an integer number (27235596).

Almost surely, 2^54471191 is an apocalyptic number.

54471191 is a deficient number, since it is larger than the sum of its proper divisors (1).

54471191 is an equidigital number, since it uses as much as digits as its factorization.

54471191 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 5040, while the sum is 32.

The square root of 54471191 is about 7380.4600805099. The cubic root of 54471191 is about 379.0725095242.

The spelling of 54471191 in words is "fifty-four million, four hundred seventy-one thousand, one hundred ninety-one".