255681950 has 12 divisors (see below), whose sum is σ = 475568520. Its totient is φ = 102272760.

The previous prime is 255681871. The next prime is 255681953. The reversal of 255681950 is 59186552.

It is a junction number, because it is equal to n+sod(n) for n = 255681898 and 255681907.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (255681953) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 2556770 + ... + 2556869.

It is an arithmetic number, because the mean of its divisors is an integer number (39630710).

Almost surely, 2^255681950 is an apocalyptic number.

255681950 is a deficient number, since it is larger than the sum of its proper divisors (219886570).

255681950 is a wasteful number, since it uses less digits than its factorization.

255681950 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5113651 (or 5113646 counting only the distinct ones).

The product of its (nonzero) digits is 108000, while the sum is 41.

The square root of 255681950 is about 15990.0578485508. The cubic root of 255681950 is about 634.6973571775.

The spelling of 255681950 in words is "two hundred fifty-five million, six hundred eighty-one thousand, nine hundred fifty".