256655302 has 4 divisors (see below), whose sum is σ = 384982956. Its totient is φ = 128327650.

The previous prime is 256655237. The next prime is 256655303. The reversal of 256655302 is 203556652.

It is a semiprime because it is the product of two primes.

It is a super-2 number, since 2×256655302² = 131743888089422408, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (256655303) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 64163824 + ... + 64163827.

It is an arithmetic number, because the mean of its divisors is an integer number (96245739).

Almost surely, 2^256655302 is an apocalyptic number.

256655302 is a deficient number, since it is larger than the sum of its proper divisors (128327654).

256655302 is a wasteful number, since it uses less digits than its factorization.

256655302 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 128327653.

The product of its (nonzero) digits is 54000, while the sum is 34.

The square root of 256655302 is about 16020.4650993659. The cubic root of 256655302 is about 635.5017441010.

The spelling of 256655302 in words is "two hundred fifty-six million, six hundred fifty-five thousand, three hundred two".