255604651 has 2 divisors, whose sum is σ = 255604652. Its totient is φ = 255604650.

The previous prime is 255604649. The next prime is 255604667. The reversal of 255604651 is 156406552.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 255604651 - 2¹ = 255604649 is a prime.

It is a super-2 number, since 2×255604651² = 130667475225663602, which contains 22 as substring.

Together with 255604649, it forms a pair of twin primes.

It is not a weakly prime, because it can be changed into another prime (255614651) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 127802325 + 127802326.

It is an arithmetic number, because the mean of its divisors is an integer number (127802326).

Almost surely, 2^255604651 is an apocalyptic number.

255604651 is a deficient number, since it is larger than the sum of its proper divisors (1).

255604651 is an equidigital number, since it uses as much as digits as its factorization.

255604651 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 36000, while the sum is 34.

The square root of 255604651 is about 15987.6405701404. The cubic root of 255604651 is about 634.6333891422.

The spelling of 255604651 in words is "two hundred fifty-five million, six hundred four thousand, six hundred fifty-one".