256602255 has 32 divisors (see below), whose sum is σ = 505311744. Its totient is φ = 108279936.

The previous prime is 256602253. The next prime is 256602257. The reversal of 256602255 is 552206652.

It is an interprime number because it is at equal distance from previous prime (256602253) and next prime (256602257).

It is not a de Polignac number, because 256602255 - 2¹ = 256602253 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (256602253) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 92629 + ... + 95358.

It is an arithmetic number, because the mean of its divisors is an integer number (15790992).

Almost surely, 2^256602255 is an apocalyptic number.

256602255 is a deficient number, since it is larger than the sum of its proper divisors (248709489).

256602255 is a wasteful number, since it uses less digits than its factorization.

256602255 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 188015.

The product of its (nonzero) digits is 36000, while the sum is 33.

The square root of 256602255 is about 16018.8094126873. The cubic root of 256602255 is about 635.4579580274.

The spelling of 256602255 in words is "two hundred fifty-six million, six hundred two thousand, two hundred fifty-five".