99211325 has 6 divisors (see below), whose sum is σ = 123022074. Its totient is φ = 79369040.

The previous prime is 99211279. The next prime is 99211327. The reversal of 99211325 is 52311299.

It can be written as a sum of positive squares in 3 ways, for example, as 19412836 + 79798489 = 4406^2 + 8933^2 .

It is not a de Polignac number, because 99211325 - 2⁶ = 99211261 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 99211291 and 99211300.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (99211327) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 1984202 + ... + 1984251.

It is an arithmetic number, because the mean of its divisors is an integer number (20503679).

Almost surely, 2^99211325 is an apocalyptic number.

It is an amenable number.

99211325 is a deficient number, since it is larger than the sum of its proper divisors (23810749).

99211325 is a wasteful number, since it uses less digits than its factorization.

99211325 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3968463 (or 3968458 counting only the distinct ones).

The product of its digits is 4860, while the sum is 32.

The square root of 99211325 is about 9960.4881908469. The cubic root of 99211325 is about 462.9354263108.

The spelling of 99211325 in words is "ninety-nine million, two hundred eleven thousand, three hundred twenty-five".