255207651 has 4 divisors (see below), whose sum is σ = 340276872. Its totient is φ = 170138432.

The previous prime is 255207649. The next prime is 255207661. The reversal of 255207651 is 156702552.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 255207651 - 2¹ = 255207649 is a prime.

It is not an unprimeable number, because it can be changed into a prime (255207661) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 42534606 + ... + 42534611.

It is an arithmetic number, because the mean of its divisors is an integer number (85069218).

Almost surely, 2^255207651 is an apocalyptic number.

255207651 is a deficient number, since it is larger than the sum of its proper divisors (85069221).

255207651 is an equidigital number, since it uses as much as digits as its factorization.

255207651 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 85069220.

The product of its (nonzero) digits is 21000, while the sum is 33.

The square root of 255207651 is about 15975.2199045897. The cubic root of 255207651 is about 634.3046522848.

The spelling of 255207651 in words is "two hundred fifty-five million, two hundred seven thousand, six hundred fifty-one".