256346255 has 16 divisors (see below), whose sum is σ = 339357600. Its totient is φ = 184335360.

The previous prime is 256346203. The next prime is 256346261. The reversal of 256346255 is 552643652.

It is not a de Polignac number, because 256346255 - 2¹² = 256342159 is a prime.

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, 21290 + ... + 31079.

It is an arithmetic number, because the mean of its divisors is an integer number (21209850).

Almost surely, 2^256346255 is an apocalyptic number.

256346255 is a deficient number, since it is larger than the sum of its proper divisors (83011345).

256346255 is a wasteful number, since it uses less digits than its factorization.

256346255 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 52474.

The product of its digits is 216000, while the sum is 38.

The square root of 256346255 is about 16010.8168123928. The cubic root of 256346255 is about 635.2465655415.

The spelling of 256346255 in words is "two hundred fifty-six million, three hundred forty-six thousand, two hundred fifty-five".