255050645 has 4 divisors (see below), whose sum is σ = 306060780. Its totient is φ = 204040512.

The previous prime is 255050639. The next prime is 255050647. The reversal of 255050645 is 546050552.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 136632721 + 118417924 = 11689^2 + 10882^2 .

It is a cyclic number.

It is not a de Polignac number, because 255050645 - 2²² = 250856341 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (255050647) 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, 25505060 + ... + 25505069.

It is an arithmetic number, because the mean of its divisors is an integer number (76515195).

Almost surely, 2^255050645 is an apocalyptic number.

It is an amenable number.

255050645 is a deficient number, since it is larger than the sum of its proper divisors (51010135).

255050645 is an equidigital number, since it uses as much as digits as its factorization.

255050645 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 51010134.

The product of its (nonzero) digits is 30000, while the sum is 32.

The square root of 255050645 is about 15970.3051004043. The cubic root of 255050645 is about 634.1745489936.

The spelling of 255050645 in words is "two hundred fifty-five million, fifty thousand, six hundred forty-five".