255403345 has 8 divisors (see below), whose sum is σ = 306616680. Its totient is φ = 204234240.

The previous prime is 255403333. The next prime is 255403349. The reversal of 255403345 is 543304552.

It is a happy number.

255403345 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 4 ways, for example, as 7403841 + 247999504 = 2721^2 + 15748^2 .

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

It is not a de Polignac number, because 255403345 - 2²³ = 247014737 is a prime.

It is not an unprimeable number, because it can be changed into a prime (255403349) 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, 3361 + ... + 22849.

It is an arithmetic number, because the mean of its divisors is an integer number (38327085).

Almost surely, 2^255403345 is an apocalyptic number.

It is an amenable number.

255403345 is a deficient number, since it is larger than the sum of its proper divisors (51213335).

255403345 is a wasteful number, since it uses less digits than its factorization.

255403345 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 22115.

The product of its (nonzero) digits is 36000, while the sum is 31.

The square root of 255403345 is about 15981.3436543990. The cubic root of 255403345 is about 634.4667397719.

Adding to 255403345 its reverse (543304552), we get a palindrome (798707897).

The spelling of 255403345 in words is "two hundred fifty-five million, four hundred three thousand, three hundred forty-five".