99395251 has 4 divisors (see below), whose sum is σ = 104626600. Its totient is φ = 94163904.

The previous prime is 99395203. The next prime is 99395321. The reversal of 99395251 is 15259399.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 15259399 = 2531 ⋅6029.

It is a cyclic number.

It is not a de Polignac number, because 99395251 - 2⁷ = 99395123 is a prime.

It is a super-3 number, since 3×99395251³ (a number of 25 digits) contains 333 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 99395198 and 99395207.

It is not an unprimeable number, because it can be changed into a prime (99395201) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2615646 + ... + 2615683.

It is an arithmetic number, because the mean of its divisors is an integer number (26156650).

Almost surely, 2^99395251 is an apocalyptic number.

99395251 is a deficient number, since it is larger than the sum of its proper divisors (5231349).

99395251 is a wasteful number, since it uses less digits than its factorization.

99395251 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5231348.

The product of its digits is 109350, while the sum is 43.

The square root of 99395251 is about 9969.7166960752. The cubic root of 99395251 is about 463.2213254545.

The spelling of 99395251 in words is "ninety-nine million, three hundred ninety-five thousand, two hundred fifty-one".