233555425 has 6 divisors (see below), whose sum is σ = 289608758. Its totient is φ = 186844320.

The previous prime is 233555417. The next prime is 233555461. The reversal of 233555425 is 524555332.

It can be written as a sum of positive squares in 3 ways, for example, as 107584 + 233447841 = 328^2 + 15279^2 .

It is not a de Polignac number, because 233555425 - 2³ = 233555417 is a prime.

It is a Duffinian number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 4671084 + ... + 4671133.

Almost surely, 2^233555425 is an apocalyptic number.

233555425 is a gapful number since it is divisible by the number (25) formed by its first and last digit.

It is an amenable number.

233555425 is a deficient number, since it is larger than the sum of its proper divisors (56053333).

233555425 is an equidigital number, since it uses as much as digits as its factorization.

233555425 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9342227 (or 9342222 counting only the distinct ones).

The product of its digits is 90000, while the sum is 34.

The square root of 233555425 is about 15282.5202437294. The cubic root of 233555425 is about 615.8335141032.

The spelling of 233555425 in words is "two hundred thirty-three million, five hundred fifty-five thousand, four hundred twenty-five".