54459619 has 4 divisors (see below), whose sum is σ = 57663144. Its totient is φ = 51256096.

The previous prime is 54459599. The next prime is 54459637. The reversal of 54459619 is 91695445.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 91695445 = 5 ⋅18339089.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-54459619 is a prime.

It is a super-2 number, since 2×54459619² = 5931700203250322, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (54450619) 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, 1601737 + ... + 1601770.

It is an arithmetic number, because the mean of its divisors is an integer number (14415786).

Almost surely, 2^54459619 is an apocalyptic number.

54459619 is a deficient number, since it is larger than the sum of its proper divisors (3203525).

54459619 is a wasteful number, since it uses less digits than its factorization.

54459619 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3203524.

The product of its digits is 194400, while the sum is 43.

The square root of 54459619 is about 7379.6760769020. The cubic root of 54459619 is about 379.0456639099.

The spelling of 54459619 in words is "fifty-four million, four hundred fifty-nine thousand, six hundred nineteen".