55427443 has 8 divisors (see below), whose sum is σ = 57086640. Its totient is φ = 53776800.

The previous prime is 55427441. The next prime is 55427459. The reversal of 55427443 is 34472455.

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

It is a cyclic number.

It is not a de Polignac number, because 55427443 - 2¹ = 55427441 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 55427399 and 55427408.

It is not an unprimeable number, because it can be changed into a prime (55427441) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 12468 + ... + 16318.

It is an arithmetic number, because the mean of its divisors is an integer number (7135830).

Almost surely, 2^55427443 is an apocalyptic number.

55427443 is a deficient number, since it is larger than the sum of its proper divisors (1659197).

55427443 is a wasteful number, since it uses less digits than its factorization.

55427443 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4277.

The product of its digits is 67200, while the sum is 34.

The square root of 55427443 is about 7444.9609132621. The cubic root of 55427443 is about 381.2778839052.

Adding to 55427443 its reverse (34472455), we get a palindrome (89899898).

The spelling of 55427443 in words is "fifty-five million, four hundred twenty-seven thousand, four hundred forty-three".