54919019 has 4 divisors (see below), whose sum is σ = 54955296. Its totient is φ = 54882744.

The previous prime is 54919013. The next prime is 54919021. The reversal of 54919019 is 91091945.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 54919019 - 2⁴ = 54919003 is a prime.

It is a super-2 number, since 2×54919019² = 6032197295844722, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (54919013) 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, 15764 + ... + 18929.

It is an arithmetic number, because the mean of its divisors is an integer number (13738824).

Almost surely, 2^54919019 is an apocalyptic number.

54919019 is a deficient number, since it is larger than the sum of its proper divisors (36277).

54919019 is a wasteful number, since it uses less digits than its factorization.

54919019 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 36276.

The product of its (nonzero) digits is 14580, while the sum is 38.

The square root of 54919019 is about 7410.7367380039. The cubic root of 54919019 is about 380.1085077942.

The spelling of 54919019 in words is "fifty-four million, nine hundred nineteen thousand, nineteen".