25800099 has 8 divisors (see below), whose sum is σ = 37046352. Its totient is φ = 15876960.

The previous prime is 25800083. The next prime is 25800107. The reversal of 25800099 is 99000852.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 25800099 - 2⁴ = 25800083 is a prime.

It is not an unprimeable number, because it can be changed into a prime (25800079) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 330732 + ... + 330809.

It is an arithmetic number, because the mean of its divisors is an integer number (4630794).

Almost surely, 2^25800099 is an apocalyptic number.

25800099 is a deficient number, since it is larger than the sum of its proper divisors (11246253).

25800099 is a wasteful number, since it uses less digits than its factorization.

25800099 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 661557.

The product of its (nonzero) digits is 6480, while the sum is 33.

The square root of 25800099 is about 5079.3797849738. The cubic root of 25800099 is about 295.4884143178.

The spelling of 25800099 in words is "twenty-five million, eight hundred thousand, ninety-nine".