838554253 has 2 divisors, whose sum is σ = 838554254. Its totient is φ = 838554252.

The previous prime is 838554239. The next prime is 838554281. The reversal of 838554253 is 352455838.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 566535204 + 272019049 = 23802^2 + 16493^2 .

It is a cyclic number.

It is not a de Polignac number, because 838554253 - 2⁹ = 838553741 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (838554293) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 419277126 + 419277127.

It is an arithmetic number, because the mean of its divisors is an integer number (419277127).

Almost surely, 2^838554253 is an apocalyptic number.

It is an amenable number.

838554253 is a deficient number, since it is larger than the sum of its proper divisors (1).

838554253 is an equidigital number, since it uses as much as digits as its factorization.

838554253 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 576000, while the sum is 43.

The square root of 838554253 is about 28957.8012459510. The cubic root of 838554253 is about 942.9971683887.

The spelling of 838554253 in words is "eight hundred thirty-eight million, five hundred fifty-four thousand, two hundred fifty-three".