54127831 has 4 divisors (see below), whose sum is σ = 55448064. Its totient is φ = 52807600.

The previous prime is 54127817. The next prime is 54127837. The reversal of 54127831 is 13872145.

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 54127831 - 2⁹ = 54127319 is a prime.

It is a super-2 number, since 2×54127831² = 5859644177529122, 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 = 54127793 and 54127802.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (54127837) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 660055 + ... + 660136.

It is an arithmetic number, because the mean of its divisors is an integer number (13862016).

Almost surely, 2^54127831 is an apocalyptic number.

54127831 is a deficient number, since it is larger than the sum of its proper divisors (1320233).

54127831 is a wasteful number, since it uses less digits than its factorization.

54127831 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1320232.

The product of its digits is 6720, while the sum is 31.

The square root of 54127831 is about 7357.1618848575. The cubic root of 54127831 is about 378.2743335754.

Adding to 54127831 its reverse (13872145), we get a palindrome (67999976).

The spelling of 54127831 in words is "fifty-four million, one hundred twenty-seven thousand, eight hundred thirty-one".