255603651 has 16 divisors (see below), whose sum is σ = 353928960. Its totient is φ = 163886240.

The previous prime is 255603643. The next prime is 255603661. The reversal of 255603651 is 156306552.

It is a cyclic number.

It is not a de Polignac number, because 255603651 - 2³ = 255603643 is a prime.

It is a zygodrome in base 2.

It is not an unprimeable number, because it can be changed into a prime (255603641) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 17296 + ... + 28466.

It is an arithmetic number, because the mean of its divisors is an integer number (22120560).

Almost surely, 2^255603651 is an apocalyptic number.

255603651 is a deficient number, since it is larger than the sum of its proper divisors (98325309).

255603651 is a wasteful number, since it uses less digits than its factorization.

255603651 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11466.

The product of its (nonzero) digits is 27000, while the sum is 33.

The square root of 255603651 is about 15987.6092959517. The cubic root of 255603651 is about 634.6325615174.

The spelling of 255603651 in words is "two hundred fifty-five million, six hundred three thousand, six hundred fifty-one".