55244001 has 16 divisors (see below), whose sum is σ = 78854400. Its totient is φ = 34297488.

The previous prime is 55243961. The next prime is 55244023. The reversal of 55244001 is 10044255.

It is not a de Polignac number, because 55244001 - 2⁷ = 55243873 is a prime.

It is not an unprimeable number, because it can be changed into a prime (55244081) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 4851 + ... + 11576.

It is an arithmetic number, because the mean of its divisors is an integer number (4928400).

Almost surely, 2^55244001 is an apocalyptic number.

It is an amenable number.

55244001 is a deficient number, since it is larger than the sum of its proper divisors (23610399).

55244001 is a wasteful number, since it uses less digits than its factorization.

55244001 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 16508.

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

The square root of 55244001 is about 7432.6308262956. The cubic root of 55244001 is about 380.8567947833.

Adding to 55244001 its reverse (10044255), we get a palindrome (65288256).

The spelling of 55244001 in words is "fifty-five million, two hundred forty-four thousand, one".