255430433 has 8 divisors (see below), whose sum is σ = 280564800. Its totient is φ = 231465168.

The previous prime is 255430393. The next prime is 255430459. The reversal of 255430433 is 334034552.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 255430433 - 2¹⁶ = 255364897 is a prime.

It is a super-2 number, since 2×255430433² = 130489412205134978, which contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 255430396 and 255430405.

It is not an unprimeable number, because it can be changed into a prime (255430333) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 291818 + ... + 292691.

It is an arithmetic number, because the mean of its divisors is an integer number (35070600).

Almost surely, 2^255430433 is an apocalyptic number.

255430433 is a gapful number since it is divisible by the number (23) formed by its first and last digit.

It is an amenable number.

255430433 is a deficient number, since it is larger than the sum of its proper divisors (25134367).

255430433 is a wasteful number, since it uses less digits than its factorization.

255430433 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 584551.

The product of its (nonzero) digits is 21600, while the sum is 29.

The square root of 255430433 is about 15982.1911201187. The cubic root of 255430433 is about 634.4891694278.

Adding to 255430433 its reverse (334034552), we get a palindrome (589464985).

The spelling of 255430433 in words is "two hundred fifty-five million, four hundred thirty thousand, four hundred thirty-three".