99019225 has 6 divisors (see below), whose sum is σ = 122783870. Its totient is φ = 79215360.

The previous prime is 99019213. The next prime is 99019243. The reversal of 99019225 is 52291099.

It can be written as a sum of positive squares in 3 ways, for example, as 7778521 + 91240704 = 2789^2 + 9552^2 .

It is not a de Polignac number, because 99019225 - 2⁷ = 99019097 is a prime.

It is an unprimeable number.

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 in 5 ways as a sum of consecutive naturals, for example, 1980360 + ... + 1980409.

Almost surely, 2^99019225 is an apocalyptic number.

It is an amenable number.

99019225 is a deficient number, since it is larger than the sum of its proper divisors (23764645).

99019225 is a wasteful number, since it uses less digits than its factorization.

99019225 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3960779 (or 3960774 counting only the distinct ones).

The product of its (nonzero) digits is 14580, while the sum is 37.

The square root of 99019225 is about 9950.8404167688. The cubic root of 99019225 is about 462.6364437949.

The spelling of 99019225 in words is "ninety-nine million, nineteen thousand, two hundred twenty-five".