255750645 has 32 divisors (see below), whose sum is σ = 415451520. Its totient is φ = 134334720.

The previous prime is 255750643. The next prime is 255750653. The reversal of 255750645 is 546057552.

It is not a de Polignac number, because 255750645 - 2¹ = 255750643 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (255750643) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 308091 + ... + 308919.

It is an arithmetic number, because the mean of its divisors is an integer number (12982860).

Almost surely, 2^255750645 is an apocalyptic number.

It is an amenable number.

255750645 is a deficient number, since it is larger than the sum of its proper divisors (159700875).

255750645 is a wasteful number, since it uses less digits than its factorization.

255750645 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1125.

The product of its (nonzero) digits is 210000, while the sum is 39.

The square root of 255750645 is about 15992.2057578059. The cubic root of 255750645 is about 634.7541942372.

The spelling of 255750645 in words is "two hundred fifty-five million, seven hundred fifty thousand, six hundred forty-five".