25302993 has 8 divisors (see below), whose sum is σ = 34900800. Its totient is φ = 16286928.

The previous prime is 25302973. The next prime is 25302997. The reversal of 25302993 is 39920352.

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

It is not a de Polignac number, because 25302993 - 2⁵ = 25302961 is a prime.

It is not an unprimeable number, because it can be changed into a prime (25302997) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 145333 + ... + 145506.

It is an arithmetic number, because the mean of its divisors is an integer number (4362600).

Almost surely, 2^25302993 is an apocalyptic number.

It is an amenable number.

25302993 is a deficient number, since it is larger than the sum of its proper divisors (9597807).

25302993 is a wasteful number, since it uses less digits than its factorization.

25302993 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 290871.

The product of its (nonzero) digits is 14580, while the sum is 33.

The square root of 25302993 is about 5030.2080473873. The cubic root of 25302993 is about 293.5783093274.

The spelling of 25302993 in words is "twenty-five million, three hundred two thousand, nine hundred ninety-three".