99855253 has 2 divisors, whose sum is σ = 99855254. Its totient is φ = 99855252.

The previous prime is 99855251. The next prime is 99855269. The reversal of 99855253 is 35255899.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 94128804 + 5726449 = 9702^2 + 2393^2 .

It is a cyclic number.

It is not a de Polignac number, because 99855253 - 2¹ = 99855251 is a prime.

Together with 99855251, it forms a pair of twin primes.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (99855251) 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, 49927626 + 49927627.

It is an arithmetic number, because the mean of its divisors is an integer number (49927627).

Almost surely, 2^99855253 is an apocalyptic number.

It is an amenable number.

99855253 is a deficient number, since it is larger than the sum of its proper divisors (1).

99855253 is an equidigital number, since it uses as much as digits as its factorization.

99855253 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 486000, while the sum is 46.

The square root of 99855253 is about 9992.7600291411. The cubic root of 99855253 is about 463.9348232001.

The spelling of 99855253 in words is "ninety-nine million, eight hundred fifty-five thousand, two hundred fifty-three".