99225001 has 4 divisors (see below), whose sum is σ = 99583492. Its totient is φ = 98866512.

The previous prime is 99224999. The next prime is 99225019. The reversal of 99225001 is 10052299.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 7160976 + 92064025 = 2676^2 + 9595^2 .

It is a cyclic number.

It is not a de Polignac number, because 99225001 - 2¹ = 99224999 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (99225041) 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, 178830 + ... + 179383.

It is an arithmetic number, because the mean of its divisors is an integer number (24895873).

Almost surely, 2^99225001 is an apocalyptic number.

It is an amenable number.

99225001 is a deficient number, since it is larger than the sum of its proper divisors (358491).

99225001 is a wasteful number, since it uses less digits than its factorization.

99225001 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 358490.

The product of its (nonzero) digits is 1620, while the sum is 28.

The square root of 99225001 is about 9961.1746797253. The cubic root of 99225001 is about 462.9566967790.

The spelling of 99225001 in words is "ninety-nine million, two hundred twenty-five thousand, one".