54443831 has 4 divisors (see below), whose sum is σ = 58631832. Its totient is φ = 50255832.

The previous prime is 54443827. The next prime is 54443839. The reversal of 54443831 is 13834445.

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 54443831 - 2² = 54443827 is a prime.

It is a super-2 number, since 2×54443831² = 5928261467913122, 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 (54443839) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2093981 + ... + 2094006.

It is an arithmetic number, because the mean of its divisors is an integer number (14657958).

Almost surely, 2^54443831 is an apocalyptic number.

54443831 is a deficient number, since it is larger than the sum of its proper divisors (4188001).

54443831 is a wasteful number, since it uses less digits than its factorization.

54443831 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4188000.

The product of its digits is 23040, while the sum is 32.

The square root of 54443831 is about 7378.6063047164. The cubic root of 54443831 is about 379.0090315608.

The spelling of 54443831 in words is "fifty-four million, four hundred forty-three thousand, eight hundred thirty-one".