255649608 has 48 divisors (see below), whose sum is σ = 718033680. Its totient is φ = 85215888.

The previous prime is 255649607. The next prime is 255649619. The reversal of 255649608 is 806946552.

255649608 is a `hidden beast` number, since 2 + 556 + 4 + 96 + 0 + 8 = 666.

It is not an unprimeable number, because it can be changed into a prime (255649607) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 63810 + ... + 67697.

It is an arithmetic number, because the mean of its divisors is an integer number (14959035).

Almost surely, 2^255649608 is an apocalyptic number.

It is an amenable number.

255649608 is an abundant number, since it is smaller than the sum of its proper divisors (462384072).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

255649608 is a wasteful number, since it uses less digits than its factorization.

255649608 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 131528 (or 131512 counting only the distinct ones).

The product of its (nonzero) digits is 518400, while the sum is 45.

The square root of 255649608 is about 15989.0465006516. The cubic root of 255649608 is about 634.6705944390.

The spelling of 255649608 in words is "two hundred fifty-five million, six hundred forty-nine thousand, six hundred eight".