55144801 has 4 divisors (see below), whose sum is σ = 55173312. Its totient is φ = 55116292.

The previous prime is 55144781. The next prime is 55144807. The reversal of 55144801 is 10844155.

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 a cyclic number.

It is not a de Polignac number, because 55144801 - 2⁵ = 55144769 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 55144801.

It is not an unprimeable number, because it can be changed into a prime (55144807) 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, 11125 + ... + 15298.

It is an arithmetic number, because the mean of its divisors is an integer number (13793328).

Almost surely, 2^55144801 is an apocalyptic number.

It is an amenable number.

55144801 is a deficient number, since it is larger than the sum of its proper divisors (28511).

55144801 is a wasteful number, since it uses less digits than its factorization.

55144801 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 28510.

The product of its (nonzero) digits is 3200, while the sum is 28.

The square root of 55144801 is about 7425.9545514365. The cubic root of 55144801 is about 380.6286938129.

Adding to 55144801 its reverse (10844155), we get a palindrome (65988956).

It can be divided in two parts, 55144 and 801, that added together give a triangular number (55945 = T₃₃₄).

The spelling of 55144801 in words is "fifty-five million, one hundred forty-four thousand, eight hundred one".