54127819 has 4 divisors (see below), whose sum is σ = 54663840. Its totient is φ = 53591800.

The previous prime is 54127817. The next prime is 54127837. The reversal of 54127819 is 91872145.

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 54127819 - 2¹ = 54127817 is a prime.

It is a super-2 number, since 2×54127819² = 5859641579393522, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (54127817) 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, 267859 + ... + 268060.

It is an arithmetic number, because the mean of its divisors is an integer number (13665960).

Almost surely, 2^54127819 is an apocalyptic number.

54127819 is a deficient number, since it is larger than the sum of its proper divisors (536021).

54127819 is a wasteful number, since it uses less digits than its factorization.

54127819 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 536020.

The product of its digits is 20160, while the sum is 37.

The square root of 54127819 is about 7357.1610693256. The cubic root of 54127819 is about 378.2743056212.

It can be divided in two parts, 54127 and 819, that added together give a triangular number (54946 = T₃₃₁).

The spelling of 54127819 in words is "fifty-four million, one hundred twenty-seven thousand, eight hundred nineteen".