255117950 has 12 divisors (see below), whose sum is σ = 474519480. Its totient is φ = 102047160.

The previous prime is 255117943. The next prime is 255118007. The reversal of 255117950 is 59711552.

It is a self number, because there is not a number n which added to its sum of digits gives 255117950.

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 5 ways as a sum of consecutive naturals, for example, 2551130 + ... + 2551229.

It is an arithmetic number, because the mean of its divisors is an integer number (39543290).

Almost surely, 2^255117950 is an apocalyptic number.

255117950 is a deficient number, since it is larger than the sum of its proper divisors (219401530).

255117950 is a wasteful number, since it uses less digits than its factorization.

255117950 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5102371 (or 5102366 counting only the distinct ones).

The product of its (nonzero) digits is 15750, while the sum is 35.

The square root of 255117950 is about 15972.4121534601. The cubic root of 255117950 is about 634.2303279338.

The spelling of 255117950 in words is "two hundred fifty-five million, one hundred seventeen thousand, nine hundred fifty".