255279742 has 8 divisors (see below), whose sum is σ = 382987800. Its totient is φ = 127617144.

The previous prime is 255279709. The next prime is 255279751. The reversal of 255279742 is 247972552.

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

It is a congruent number.

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 in 3 ways as a sum of consecutive naturals, for example, 13984 + ... + 26572.

It is an arithmetic number, because the mean of its divisors is an integer number (47873475).

Almost surely, 2^255279742 is an apocalyptic number.

255279742 is a deficient number, since it is larger than the sum of its proper divisors (127708058).

255279742 is a wasteful number, since it uses less digits than its factorization.

255279742 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 22730.

The product of its digits is 352800, while the sum is 43.

The square root of 255279742 is about 15977.4760835371. The cubic root of 255279742 is about 634.3643727405.

The spelling of 255279742 in words is "two hundred fifty-five million, two hundred seventy-nine thousand, seven hundred forty-two".