255215345 has 16 divisors (see below), whose sum is σ = 381829248. Its totient is φ = 159095040.

The previous prime is 255215333. The next prime is 255215351. The reversal of 255215345 is 543512552.

It is not a de Polignac number, because 255215345 - 2⁴ = 255215329 is a prime.

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 331064 + ... + 331833.

It is an arithmetic number, because the mean of its divisors is an integer number (23864328).

Almost surely, 2^255215345 is an apocalyptic number.

It is an amenable number.

255215345 is a deficient number, since it is larger than the sum of its proper divisors (126613903).

255215345 is a wasteful number, since it uses less digits than its factorization.

255215345 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 662920.

The product of its digits is 30000, while the sum is 32.

The square root of 255215345 is about 15975.4607132314. The cubic root of 255215345 is about 634.3110265594.

Adding to 255215345 its reverse (543512552), we get a palindrome (798727897).

The spelling of 255215345 in words is "two hundred fifty-five million, two hundred fifteen thousand, three hundred forty-five".