54428519 has 4 divisors (see below), whose sum is σ = 54558840. Its totient is φ = 54298200.

The previous prime is 54428501. The next prime is 54428527. The reversal of 54428519 is 91582445.

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 54428519 - 2¹² = 54424423 is a prime.

It is a super-2 number, since 2×54428519² = 5924927361066722, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (54428719) 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, 64532 + ... + 65369.

It is an arithmetic number, because the mean of its divisors is an integer number (13639710).

Almost surely, 2^54428519 is an apocalyptic number.

54428519 is a deficient number, since it is larger than the sum of its proper divisors (130321).

54428519 is a wasteful number, since it uses less digits than its factorization.

54428519 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 130320.

The product of its digits is 57600, while the sum is 38.

The square root of 54428519 is about 7377.5686374306. The cubic root of 54428519 is about 378.9734968924.

The spelling of 54428519 in words is "fifty-four million, four hundred twenty-eight thousand, five hundred nineteen".