256602650 has 12 divisors (see below), whose sum is σ = 477281022. Its totient is φ = 102641040.

The previous prime is 256602637. The next prime is 256602673. The reversal of 256602650 is 56206652.

It can be written as a sum of positive squares in 3 ways, for example, as 244078129 + 12524521 = 15623^2 + 3539^2 .

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 2565977 + ... + 2566076.

Almost surely, 2^256602650 is an apocalyptic number.

256602650 is a deficient number, since it is larger than the sum of its proper divisors (220678372).

256602650 is a wasteful number, since it uses less digits than its factorization.

256602650 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5132065 (or 5132060 counting only the distinct ones).

The product of its (nonzero) digits is 21600, while the sum is 32.

The square root of 256602650 is about 16018.8217419385. The cubic root of 256602650 is about 635.4582840907.

The spelling of 256602650 in words is "two hundred fifty-six million, six hundred two thousand, six hundred fifty".