255945490 has 8 divisors (see below), whose sum is σ = 460701900. Its totient is φ = 102378192.

The previous prime is 255945479. The next prime is 255945491. The reversal of 255945490 is 94549552.

It can be written as a sum of positive squares in 2 ways, for example, as 254179249 + 1766241 = 15943^2 + 1329^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is not an unprimeable number, because it can be changed into a prime (255945491) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 12797265 + ... + 12797284.

Almost surely, 2^255945490 is an apocalyptic number.

255945490 is a deficient number, since it is larger than the sum of its proper divisors (204756410).

255945490 is a wasteful number, since it uses less digits than its factorization.

255945490 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 25594556.

The product of its (nonzero) digits is 324000, while the sum is 43.

The square root of 255945490 is about 15998.2964718122. The cubic root of 255945490 is about 634.9153502802.

The spelling of 255945490 in words is "two hundred fifty-five million, nine hundred forty-five thousand, four hundred ninety".