25953009 has 8 divisors (see below), whose sum is σ = 34921920. Its totient is φ = 17143056.

The previous prime is 25953007. The next prime is 25953019. The reversal of 25953009 is 90035952.

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

It is not a de Polignac number, because 25953009 - 2¹ = 25953007 is a prime.

It is not an unprimeable number, because it can be changed into a prime (25953007) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 39357 + ... + 40010.

It is an arithmetic number, because the mean of its divisors is an integer number (4365240).

Almost surely, 2^25953009 is an apocalyptic number.

It is an amenable number.

25953009 is a deficient number, since it is larger than the sum of its proper divisors (8968911).

25953009 is a wasteful number, since it uses less digits than its factorization.

25953009 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 79479.

The product of its (nonzero) digits is 12150, while the sum is 33.

The square root of 25953009 is about 5094.4095830626. The cubic root of 25953009 is about 296.0710240147.

The spelling of 25953009 in words is "twenty-five million, nine hundred fifty-three thousand, nine".