54581869 has 2 divisors, whose sum is σ = 54581870. Its totient is φ = 54581868.

The previous prime is 54581843. The next prime is 54581887. The reversal of 54581869 is 96818545.

54581869 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 49519369 + 5062500 = 7037^2 + 2250^2 .

It is a cyclic number.

It is not a de Polignac number, because 54581869 - 2¹⁵ = 54549101 is a prime.

It is a super-2 number, since 2×54581869² = 5958360847066322, which contains 22 as substring.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (54581809) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 27290934 + 27290935.

It is an arithmetic number, because the mean of its divisors is an integer number (27290935).

Almost surely, 2^54581869 is an apocalyptic number.

It is an amenable number.

54581869 is a deficient number, since it is larger than the sum of its proper divisors (1).

54581869 is an equidigital number, since it uses as much as digits as its factorization.

54581869 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 345600, while the sum is 46.

The square root of 54581869 is about 7387.9543176714. The cubic root of 54581869 is about 379.3290769737.

The spelling of 54581869 in words is "fifty-four million, five hundred eighty-one thousand, eight hundred sixty-nine".