100444025 has 12 divisors (see below), whose sum is σ = 135873744. Its totient is φ = 73050000.

The previous prime is 100443989. The next prime is 100444031. The reversal of 100444025 is 520444001.

It is not a de Polignac number, because 100444025 - 2⁶ = 100443961 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 100443988 and 100444006.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 182351 + ... + 182900.

It is an arithmetic number, because the mean of its divisors is an integer number (11322812).

Almost surely, 2^100444025 is an apocalyptic number.

It is an amenable number.

100444025 is a deficient number, since it is larger than the sum of its proper divisors (35429719).

100444025 is a wasteful number, since it uses less digits than its factorization.

100444025 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 365272 (or 365267 counting only the distinct ones).

The product of its (nonzero) digits is 640, while the sum is 20.

The square root of 100444025 is about 10022.1766597880. The cubic root of 100444025 is about 464.8448628813.

Adding to 100444025 its reverse (520444001), we get a palindrome (620888026).

The spelling of 100444025 in words is "one hundred million, four hundred forty-four thousand, twenty-five".