55243401 has 16 divisors (see below), whose sum is σ = 77220864. Its totient is φ = 35062544.

The previous prime is 55243381. The next prime is 55243403. The reversal of 55243401 is 10434255.

55243401 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a cyclic number.

It is not a de Polignac number, because 55243401 - 2⁶ = 55243337 is a prime.

It is not an unprimeable number, because it can be changed into a prime (55243403) 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 15 ways as a sum of consecutive naturals, for example, 13900 + ... + 17426.

It is an arithmetic number, because the mean of its divisors is an integer number (4826304).

Almost surely, 2^55243401 is an apocalyptic number.

It is an amenable number.

55243401 is a deficient number, since it is larger than the sum of its proper divisors (21977463).

55243401 is a wasteful number, since it uses less digits than its factorization.

55243401 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3780.

The product of its (nonzero) digits is 2400, while the sum is 24.

The square root of 55243401 is about 7432.5904636271. The cubic root of 55243401 is about 380.8554159614.

Adding to 55243401 its reverse (10434255), we get a palindrome (65677656).

The spelling of 55243401 in words is "fifty-five million, two hundred forty-three thousand, four hundred one".