255257426 has 4 divisors (see below), whose sum is σ = 382886142. Its totient is φ = 127628712.

The previous prime is 255257411. The next prime is 255257467. The reversal of 255257426 is 624752552.

It is a happy number.

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

It can be written as a sum of positive squares in only one way, i.e., 140446201 + 114811225 = 11851^2 + 10715^2 .

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 255257426.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 63814355 + ... + 63814358.

Almost surely, 2^255257426 is an apocalyptic number.

255257426 is a deficient number, since it is larger than the sum of its proper divisors (127628716).

255257426 is a wasteful number, since it uses less digits than its factorization.

255257426 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 127628715.

The product of its digits is 168000, while the sum is 38.

The square root of 255257426 is about 15976.7777101642. Note that the first 4 decimals coincide. The cubic root of 255257426 is about 634.3458872838.

The spelling of 255257426 in words is "two hundred fifty-five million, two hundred fifty-seven thousand, four hundred twenty-six".