54487219 has 2 divisors, whose sum is σ = 54487220. Its totient is φ = 54487218.

The previous prime is 54487211. The next prime is 54487249. The reversal of 54487219 is 91278445.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 54487219 - 2³ = 54487211 is a prime.

It is a super-2 number, since 2×54487219² = 5937714068707922, which contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (54487211) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 27243609 + 27243610.

It is an arithmetic number, because the mean of its divisors is an integer number (27243610).

Almost surely, 2^54487219 is an apocalyptic number.

54487219 is a deficient number, since it is larger than the sum of its proper divisors (1).

54487219 is an equidigital number, since it uses as much as digits as its factorization.

54487219 is an evil number, because the sum of its binary digits is even.

The product of its digits is 80640, while the sum is 40.

The square root of 54487219 is about 7381.5458408114. The cubic root of 54487219 is about 379.1096862301.

The spelling of 54487219 in words is "fifty-four million, four hundred eighty-seven thousand, two hundred nineteen".