255777494 has 16 divisors (see below), whose sum is σ = 440149248. Its totient is φ = 109200552.

The previous prime is 255777491. The next prime is 255777499. The reversal of 255777494 is 494777552.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (255777491) 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 7 ways as a sum of consecutive naturals, for example, 31052 + ... + 38415.

It is an arithmetic number, because the mean of its divisors is an integer number (27509328).

Almost surely, 2^255777494 is an apocalyptic number.

255777494 is a deficient number, since it is larger than the sum of its proper divisors (184371754).

255777494 is a wasteful number, since it uses less digits than its factorization.

255777494 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 69739.

The product of its digits is 2469600, while the sum is 50.

The square root of 255777494 is about 15993.0451759507. The cubic root of 255777494 is about 634.7764058710.

The spelling of 255777494 in words is "two hundred fifty-five million, seven hundred seventy-seven thousand, four hundred ninety-four".