100044553 has 4 divisors (see below), whose sum is σ = 114336640. Its totient is φ = 85752468.

The previous prime is 100044547. The next prime is 100044563. The reversal of 100044553 is 355440001.

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, and also an emirpimes, since its reverse is a distinct semiprime: 355440001 = 7 ⋅50777143.

It is a cyclic number.

It is not a de Polignac number, because 100044553 - 2⁵ = 100044521 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (100044563) 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, 7146033 + ... + 7146046.

It is an arithmetic number, because the mean of its divisors is an integer number (28584160).

Almost surely, 2^100044553 is an apocalyptic number.

It is an amenable number.

100044553 is a deficient number, since it is larger than the sum of its proper divisors (14292087).

100044553 is an equidigital number, since it uses as much as digits as its factorization.

100044553 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 14292086.

The product of its (nonzero) digits is 1200, while the sum is 22.

The square root of 100044553 is about 10002.2274019340. The cubic root of 100044553 is about 464.2278053625.

Adding to 100044553 its reverse (355440001), we get a palindrome (455484554).

The spelling of 100044553 in words is "one hundred million, forty-four thousand, five hundred fifty-three".