255516951 has 8 divisors (see below), whose sum is σ = 342593280. Its totient is φ = 169392632.

The previous prime is 255516929. The next prime is 255516967. The reversal of 255516951 is 159615552.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 255516951 - 2⁷ = 255516823 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (255515951) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 237375 + ... + 238448.

It is an arithmetic number, because the mean of its divisors is an integer number (42824160).

Almost surely, 2^255516951 is an apocalyptic number.

255516951 is a deficient number, since it is larger than the sum of its proper divisors (87076329).

255516951 is a wasteful number, since it uses less digits than its factorization.

255516951 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 476005.

The product of its digits is 67500, while the sum is 39.

The square root of 255516951 is about 15984.8975911640. The cubic root of 255516951 is about 634.5607982422.

The spelling of 255516951 in words is "two hundred fifty-five million, five hundred sixteen thousand, nine hundred fifty-one".