255643246 has 16 divisors (see below), whose sum is σ = 414662976. Its totient is φ = 117742336.

The previous prime is 255643231. The next prime is 255643273. The reversal of 255643246 is 642346552.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 78391 + ... + 81586.

It is an arithmetic number, because the mean of its divisors is an integer number (25916436).

Almost surely, 2^255643246 is an apocalyptic number.

255643246 is a deficient number, since it is larger than the sum of its proper divisors (159019730).

255643246 is a wasteful number, since it uses less digits than its factorization.

255643246 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 160043.

The product of its digits is 172800, while the sum is 37.

The square root of 255643246 is about 15988.8475507148. The cubic root of 255643246 is about 634.6653296707.

Adding to 255643246 its reverse (642346552), we get a palindrome (897989798).

The spelling of 255643246 in words is "two hundred fifty-five million, six hundred forty-three thousand, two hundred forty-six".