25285099 has 8 divisors (see below), whose sum is σ = 29387520. Its totient is φ = 21305256.

The previous prime is 25285093. The next prime is 25285109. The reversal of 25285099 is 99058252.

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

It is not a de Polignac number, because 25285099 - 2⁷ = 25284971 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (25285093) 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, 30199 + ... + 31024.

It is an arithmetic number, because the mean of its divisors is an integer number (3673440).

Almost surely, 2^25285099 is an apocalyptic number.

25285099 is a deficient number, since it is larger than the sum of its proper divisors (4102421).

25285099 is an equidigital number, since it uses as much as digits as its factorization.

25285099 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 61289.

The product of its (nonzero) digits is 64800, while the sum is 40.

The square root of 25285099 is about 5028.4290787482. The cubic root of 25285099 is about 293.5090878838.

The spelling of 25285099 in words is "twenty-five million, two hundred eighty-five thousand, ninety-nine".