55144101 has 4 divisors (see below), whose sum is σ = 73525472. Its totient is φ = 36762732.

The previous prime is 55144069. The next prime is 55144123. The reversal of 55144101 is 10144155.

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 55144101 - 2⁵ = 55144069 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (55144151) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 9190681 + ... + 9190686.

It is an arithmetic number, because the mean of its divisors is an integer number (18381368).

Almost surely, 2^55144101 is an apocalyptic number.

It is an amenable number.

55144101 is a deficient number, since it is larger than the sum of its proper divisors (18381371).

55144101 is a wasteful number, since it uses less digits than its factorization.

55144101 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 18381370.

The product of its (nonzero) digits is 400, while the sum is 21.

The square root of 55144101 is about 7425.9074192990. The cubic root of 55144101 is about 380.6270832579.

Adding to 55144101 its reverse (10144155), we get a palindrome (65288256).

The spelling of 55144101 in words is "fifty-five million, one hundred forty-four thousand, one hundred one".