255249788 has 6 divisors (see below), whose sum is σ = 446687136. Its totient is φ = 127624892.

The previous prime is 255249779. The next prime is 255249821. The reversal of 255249788 is 887942552.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 31906220 + ... + 31906227.

It is an arithmetic number, because the mean of its divisors is an integer number (74447856).

Almost surely, 2^255249788 is an apocalyptic number.

It is an amenable number.

255249788 is a deficient number, since it is larger than the sum of its proper divisors (191437348).

255249788 is a wasteful number, since it uses less digits than its factorization.

255249788 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 63812451 (or 63812449 counting only the distinct ones).

The product of its digits is 1612800, while the sum is 50.

The square root of 255249788 is about 15976.5386739431. The cubic root of 255249788 is about 634.3395600996.

The spelling of 255249788 in words is "two hundred fifty-five million, two hundred forty-nine thousand, seven hundred eighty-eight".