203345425 has 12 divisors (see below), whose sum is σ = 252326236. Its totient is φ = 162561600.

The previous prime is 203345371. The next prime is 203345459. The reversal of 203345425 is 524543302.

It can be written as a sum of positive squares in 6 ways, for example, as 35617024 + 167728401 = 5968^2 + 12951^2 .

It is not a de Polignac number, because 203345425 - 2¹⁵ = 203312657 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 203345393 and 203345402.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 62335 + ... + 65515.

Almost surely, 2^203345425 is an apocalyptic number.

203345425 is a gapful number since it is divisible by the number (25) formed by its first and last digit.

It is an amenable number.

203345425 is a deficient number, since it is larger than the sum of its proper divisors (48980811).

203345425 is a wasteful number, since it uses less digits than its factorization.

203345425 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5748 (or 5743 counting only the distinct ones).

The product of its (nonzero) digits is 14400, while the sum is 28.

The square root of 203345425 is about 14259.9237375240. The cubic root of 203345425 is about 588.0462280668.

Adding to 203345425 its reverse (524543302), we get a palindrome (727888727).

The spelling of 203345425 in words is "two hundred three million, three hundred forty-five thousand, four hundred twenty-five".