203422425 has 48 divisors (see below), whose sum is σ = 359798400. Its totient is φ = 101053440.

The previous prime is 203422423. The next prime is 203422441. The reversal of 203422425 is 524224302.

It is a happy number.

It is not a de Polignac number, because 203422425 - 2¹ = 203422423 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 203422395 and 203422404.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (203422421) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 130551 + ... + 132099.

It is an arithmetic number, because the mean of its divisors is an integer number (7495800).

Almost surely, 2^203422425 is an apocalyptic number.

203422425 is a gapful number since it is divisible by the number (25) formed by its first and last digit.

It is an amenable number.

203422425 is a deficient number, since it is larger than the sum of its proper divisors (156375975).

203422425 is a wasteful number, since it uses less digits than its factorization.

203422425 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1682 (or 1677 counting only the distinct ones).

The product of its (nonzero) digits is 3840, while the sum is 24.

The square root of 203422425 is about 14262.6233561712. The cubic root of 203422425 is about 588.1204430723.

Adding to 203422425 its reverse (524224302), we get a palindrome (727646727).

The spelling of 203422425 in words is "two hundred three million, four hundred twenty-two thousand, four hundred twenty-five".