254816651 has 2 divisors, whose sum is σ = 254816652. Its totient is φ = 254816650.

The previous prime is 254816629. The next prime is 254816659. The reversal of 254816651 is 156618452.

It is a happy number.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-254816651 is a prime.

It is not a weakly prime, because it can be changed into another prime (254816659) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 127408325 + 127408326.

It is an arithmetic number, because the mean of its divisors is an integer number (127408326).

Almost surely, 2^254816651 is an apocalyptic number.

254816651 is a deficient number, since it is larger than the sum of its proper divisors (1).

254816651 is an equidigital number, since it uses as much as digits as its factorization.

254816651 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 57600, while the sum is 38.

The square root of 254816651 is about 15962.9775104772. The cubic root of 254816651 is about 633.9805503426.

The spelling of 254816651 in words is "two hundred fifty-four million, eight hundred sixteen thousand, six hundred fifty-one".