55042401 has 8 divisors (see below), whose sum is σ = 73950624. Its totient is φ = 36414560.

The previous prime is 55042399. The next prime is 55042423. The reversal of 55042401 is 10424055.

55042401 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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 55042401 - 2¹ = 55042399 is a prime.

It is not an unprimeable number, because it can be changed into a prime (55042441) 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 7 ways as a sum of consecutive naturals, for example, 69636 + ... + 70421.

It is an arithmetic number, because the mean of its divisors is an integer number (9243828).

Almost surely, 2^55042401 is an apocalyptic number.

It is an amenable number.

55042401 is a deficient number, since it is larger than the sum of its proper divisors (18908223).

55042401 is a wasteful number, since it uses less digits than its factorization.

55042401 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 140191.

The product of its (nonzero) digits is 800, while the sum is 21.

The square root of 55042401 is about 7419.0566111872. The cubic root of 55042401 is about 380.3929476325.

Adding to 55042401 its reverse (10424055), we get a palindrome (65466456).

The spelling of 55042401 in words is "fifty-five million, forty-two thousand, four hundred one".