54637819 has 2 divisors, whose sum is σ = 54637820. Its totient is φ = 54637818.

The previous prime is 54637757. The next prime is 54637879. The reversal of 54637819 is 91873645.

54637819 is nontrivially palindromic in base 15.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 54637819 - 2⁷ = 54637691 is a prime.

It is a super-2 number, since 2×54637819² = 5970582530153522, which contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (54637879) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 27318909 + 27318910.

It is an arithmetic number, because the mean of its divisors is an integer number (27318910).

Almost surely, 2^54637819 is an apocalyptic number.

54637819 is a deficient number, since it is larger than the sum of its proper divisors (1).

54637819 is an equidigital number, since it uses as much as digits as its factorization.

54637819 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 181440, while the sum is 43.

The square root of 54637819 is about 7391.7399169614. The cubic root of 54637819 is about 379.4586451164.

The spelling of 54637819 in words is "fifty-four million, six hundred thirty-seven thousand, eight hundred nineteen".