256605532 has 12 divisors (see below), whose sum is σ = 452596480. Its totient is φ = 127292256.

The previous prime is 256605527. The next prime is 256605533. The reversal of 256605532 is 235506652.

It is a hoax number, since the sum of its digits (34) coincides with the sum of the digits of its distinct prime factors.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (256605533) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 252057 + ... + 253072.

Almost surely, 2^256605532 is an apocalyptic number.

It is an amenable number.

256605532 is a deficient number, since it is larger than the sum of its proper divisors (195990948).

256605532 is a wasteful number, since it uses less digits than its factorization.

256605532 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 505260 (or 505258 counting only the distinct ones).

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

The square root of 256605532 is about 16018.9116983645. The cubic root of 256605532 is about 635.4606631048.

The spelling of 256605532 in words is "two hundred fifty-six million, six hundred five thousand, five hundred thirty-two".