100503425 has 12 divisors (see below), whose sum is σ = 135954096. Its totient is φ = 73093200.

The previous prime is 100503421. The next prime is 100503449. The reversal of 100503425 is 524305001.

It is not a de Polignac number, because 100503425 - 2² = 100503421 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 100503397 and 100503406.

It is not an unprimeable number, because it can be changed into a prime (100503421) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 182459 + ... + 183008.

It is an arithmetic number, because the mean of its divisors is an integer number (11329508).

Almost surely, 2^100503425 is an apocalyptic number.

It is an amenable number.

100503425 is a deficient number, since it is larger than the sum of its proper divisors (35450671).

100503425 is a wasteful number, since it uses less digits than its factorization.

100503425 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 365488 (or 365483 counting only the distinct ones).

The product of its (nonzero) digits is 600, while the sum is 20.

The square root of 100503425 is about 10025.1396499001. The cubic root of 100503425 is about 464.9364772363.

Adding to 100503425 its reverse (524305001), we get a palindrome (624808426).

The spelling of 100503425 in words is "one hundred million, five hundred three thousand, four hundred twenty-five".