100500025 has 24 divisors (see below), whose sum is σ = 132045120. Its totient is φ = 75666240.

The previous prime is 100500019. The next prime is 100500121. The reversal of 100500025 is 520005001.

It is not a de Polignac number, because 100500025 - 2²¹ = 98402873 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 100499978 and 100500014.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 81564 + ... + 82786.

It is an arithmetic number, because the mean of its divisors is an integer number (5501880).

Almost surely, 2^100500025 is an apocalyptic number.

It is an amenable number.

100500025 is a deficient number, since it is larger than the sum of its proper divisors (31545095).

100500025 is a wasteful number, since it uses less digits than its factorization.

100500025 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1425 (or 1420 counting only the distinct ones).

The product of its (nonzero) digits is 50, while the sum is 13.

The square root of 100500025 is about 10024.9700747683. The cubic root of 100500025 is about 464.9312342911.

Adding to 100500025 its reverse (520005001), we get a palindrome (620505026).

The spelling of 100500025 in words is "one hundred million, five hundred thousand, twenty-five".