55444324501 has 4 divisors (see below), whose sum is σ = 58705755372. Its totient is φ = 52182893632.

The previous prime is 55444324487. The next prime is 55444324541. The reversal of 55444324501 is 10542344455.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 10542344455 = 5 ⋅2108468891.

It can be written as a sum of positive squares in 2 ways, for example, as 28161874225 + 27282450276 = 167815^2 + 165174^2 .

It is a cyclic number.

It is not a de Polignac number, because 55444324501 - 2⁷ = 55444324373 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (55444324541) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1630715410 + ... + 1630715443.

It is an arithmetic number, because the mean of its divisors is an integer number (14676438843).

Almost surely, 2^55444324501 is an apocalyptic number.

It is an amenable number.

55444324501 is a deficient number, since it is larger than the sum of its proper divisors (3261430871).

55444324501 is a wasteful number, since it uses less digits than its factorization.

55444324501 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3261430870.

The product of its (nonzero) digits is 192000, while the sum is 37.

Adding to 55444324501 its reverse (10542344455), we get a palindrome (65986668956).

The spelling of 55444324501 in words is "fifty-five billion, four hundred forty-four million, three hundred twenty-four thousand, five hundred one".