253676321 has 2 divisors, whose sum is σ = 253676322. Its totient is φ = 253676320.

The previous prime is 253676281. The next prime is 253676351. The reversal of 253676321 is 123676352.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 217975696 + 35700625 = 14764^2 + 5975^2 .

It is a cyclic number.

It is not a de Polignac number, because 253676321 - 2⁶ = 253676257 is a prime.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (253676351) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 126838160 + 126838161.

It is an arithmetic number, because the mean of its divisors is an integer number (126838161).

Almost surely, 2^253676321 is an apocalyptic number.

It is an amenable number.

253676321 is a deficient number, since it is larger than the sum of its proper divisors (1).

253676321 is an equidigital number, since it uses as much as digits as its factorization.

253676321 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 45360, while the sum is 35.

The square root of 253676321 is about 15927.2194999629. The cubic root of 253676321 is about 633.0334273198.

The spelling of 253676321 in words is "two hundred fifty-three million, six hundred seventy-six thousand, three hundred twenty-one".