256205332 has 6 divisors (see below), whose sum is σ = 448359338. Its totient is φ = 128102664.

The previous prime is 256205311. The next prime is 256205347. The reversal of 256205332 is 233502652.

It can be written as a sum of positive squares in only one way, i.e., 134235396 + 121969936 = 11586^2 + 11044^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 256205332.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 32025663 + ... + 32025670.

Almost surely, 2^256205332 is an apocalyptic number.

It is an amenable number.

256205332 is a deficient number, since it is larger than the sum of its proper divisors (192154006).

256205332 is a wasteful number, since it uses less digits than its factorization.

256205332 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 64051337 (or 64051335 counting only the distinct ones).

The product of its (nonzero) digits is 10800, while the sum is 28.

The square root of 256205332 is about 16006.4153388571. The cubic root of 256205332 is about 635.1301380411.

Adding to 256205332 its reverse (233502652), we get a palindrome (489707984).

The spelling of 256205332 in words is "two hundred fifty-six million, two hundred five thousand, three hundred thirty-two".