255768550 has 12 divisors (see below), whose sum is σ = 475729596. Its totient is φ = 102307400.

The previous prime is 255768523. The next prime is 255768551. The reversal of 255768550 is 55867552.

It is a junction number, because it is equal to n+sod(n) for n = 255768497 and 255768506.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (255768551) 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, 2557636 + ... + 2557735.

It is an arithmetic number, because the mean of its divisors is an integer number (39644133).

Almost surely, 2^255768550 is an apocalyptic number.

255768550 is a deficient number, since it is larger than the sum of its proper divisors (219961046).

255768550 is a wasteful number, since it uses less digits than its factorization.

255768550 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5115383 (or 5115378 counting only the distinct ones).

The product of its (nonzero) digits is 420000, while the sum is 43.

The square root of 255768550 is about 15992.7655519613. The cubic root of 255768550 is about 634.7690068536.

The spelling of 255768550 in words is "two hundred fifty-five million, seven hundred sixty-eight thousand, five hundred fifty".