99942253 has 2 divisors, whose sum is σ = 99942254. Its totient is φ = 99942252.

The previous prime is 99942247. The next prime is 99942281. The reversal of 99942253 is 35224999.

It is a happy number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 64931364 + 35010889 = 8058^2 + 5917^2 .

It is a cyclic number.

It is not a de Polignac number, because 99942253 - 2⁹ = 99941741 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (99942053) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 49971126 + 49971127.

It is an arithmetic number, because the mean of its divisors is an integer number (49971127).

Almost surely, 2^99942253 is an apocalyptic number.

It is an amenable number.

99942253 is a deficient number, since it is larger than the sum of its proper divisors (1).

99942253 is an equidigital number, since it uses as much as digits as its factorization.

99942253 is an evil number, because the sum of its binary digits is even.

The product of its digits is 174960, while the sum is 43.

The square root of 99942253 is about 9997.1122330401. The cubic root of 99942253 is about 464.0695202141.

The spelling of 99942253 in words is "ninety-nine million, nine hundred forty-two thousand, two hundred fifty-three".