55731441 has 4 divisors (see below), whose sum is σ = 74308592. Its totient is φ = 37154292.

The previous prime is 55731439. The next prime is 55731449. The reversal of 55731441 is 14413755.

55731441 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is not a de Polignac number, because 55731441 - 2¹ = 55731439 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 55731399 and 55731408.

It is not an unprimeable number, because it can be changed into a prime (55731449) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 9288571 + ... + 9288576.

It is an arithmetic number, because the mean of its divisors is an integer number (18577148).

Almost surely, 2^55731441 is an apocalyptic number.

It is an amenable number.

55731441 is a deficient number, since it is larger than the sum of its proper divisors (18577151).

55731441 is a wasteful number, since it uses less digits than its factorization.

55731441 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 18577150.

The product of its digits is 8400, while the sum is 30.

The square root of 55731441 is about 7465.3493555225. The cubic root of 55731441 is about 381.9736671266.

The spelling of 55731441 in words is "fifty-five million, seven hundred thirty-one thousand, four hundred forty-one".