54109019 has 4 divisors (see below), whose sum is σ = 54135744. Its totient is φ = 54082296.

The previous prime is 54109009. The next prime is 54109021. The reversal of 54109019 is 91090145.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 91090145 = 5 ⋅18218029.

It is a cyclic number.

It is not a de Polignac number, because 54109019 - 2²⁰ = 53060443 is a prime.

It is a super-2 number, since 2×54109019² = 5855571874284722, which contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 54108982 and 54109000.

It is not an unprimeable number, because it can be changed into a prime (54109009) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 10052 + ... + 14465.

It is an arithmetic number, because the mean of its divisors is an integer number (13533936).

Almost surely, 2^54109019 is an apocalyptic number.

54109019 is a deficient number, since it is larger than the sum of its proper divisors (26725).

54109019 is a wasteful number, since it uses less digits than its factorization.

54109019 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 26724.

The product of its (nonzero) digits is 1620, while the sum is 29.

The square root of 54109019 is about 7355.8832916245. The cubic root of 54109019 is about 378.2305057134.

The spelling of 54109019 in words is "fifty-four million, one hundred nine thousand, nineteen".