256005302 has 24 divisors (see below), whose sum is σ = 447256656. Its totient is φ = 109580688.

The previous prime is 256005251. The next prime is 256005313. The reversal of 256005302 is 203500652.

It is a happy number.

256005302 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a super-2 number, since 2×256005302² = 131077429304222408, which contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 150368 + ... + 152060.

It is an arithmetic number, because the mean of its divisors is an integer number (18635694).

Almost surely, 2^256005302 is an apocalyptic number.

256005302 is a deficient number, since it is larger than the sum of its proper divisors (191251354).

256005302 is a wasteful number, since it uses less digits than its factorization.

256005302 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3252 (or 3245 counting only the distinct ones).

The product of its (nonzero) digits is 1800, while the sum is 23.

The square root of 256005302 is about 16000.1656866421. The cubic root of 256005302 is about 634.9648042989.

Adding to 256005302 its reverse (203500652), we get a palindrome (459505954).

The spelling of 256005302 in words is "two hundred fifty-six million, five thousand, three hundred two".