55043031 has 8 divisors (see below), whose sum is σ = 73456624. Its totient is φ = 36662400.

The previous prime is 55042961. The next prime is 55043039. The reversal of 55043031 is 13034055.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 55043031 - 2²² = 50848727 is a prime.

It is a super-2 number, since 2×55043031² = 6059470523333922, 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 = 55042989 and 55043007.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (55043039) 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 7 ways as a sum of consecutive naturals, for example, 4036 + ... + 11241.

It is an arithmetic number, because the mean of its divisors is an integer number (9182078).

Almost surely, 2^55043031 is an apocalyptic number.

55043031 is a deficient number, since it is larger than the sum of its proper divisors (18413593).

55043031 is a wasteful number, since it uses less digits than its factorization.

55043031 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 16481.

The product of its (nonzero) digits is 900, while the sum is 21.

The square root of 55043031 is about 7419.0990692941. The cubic root of 55043031 is about 380.3943989175.

Adding to 55043031 its reverse (13034055), we get a palindrome (68077086).

The spelling of 55043031 in words is "fifty-five million, forty-three thousand, thirty-one".