255243406 has 32 divisors (see below), whose sum is σ = 444165120. Its totient is φ = 108720000.

The previous prime is 255243379. The next prime is 255243421. The reversal of 255243406 is 604342552.

It is a congruent 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, 92515 + ... + 95233.

It is an arithmetic number, because the mean of its divisors is an integer number (13880160).

Almost surely, 2^255243406 is an apocalyptic number.

255243406 is a deficient number, since it is larger than the sum of its proper divisors (188921714).

255243406 is a wasteful number, since it uses less digits than its factorization.

255243406 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3000.

The product of its (nonzero) digits is 28800, while the sum is 31.

The square root of 255243406 is about 15976.3389423234. The cubic root of 255243406 is about 634.3342732669.

Adding to 255243406 its reverse (604342552), we get a palindrome (859585958).

The spelling of 255243406 in words is "two hundred fifty-five million, two hundred forty-three thousand, four hundred six".