23725009 has 8 divisors (see below), whose sum is σ = 29579328. Its totient is φ = 18486960.

The previous prime is 23725007. The next prime is 23725027. The reversal of 23725009 is 90052732.

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

It is a cyclic number.

It is not a de Polignac number, because 23725009 - 2¹ = 23725007 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (23725007) 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, 153982 + ... + 154135.

It is an arithmetic number, because the mean of its divisors is an integer number (3697416).

Almost surely, 2^23725009 is an apocalyptic number.

It is an amenable number.

23725009 is a deficient number, since it is larger than the sum of its proper divisors (5854319).

23725009 is a wasteful number, since it uses less digits than its factorization.

23725009 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 308135.

The product of its (nonzero) digits is 3780, while the sum is 28.

The square root of 23725009 is about 4870.8324750498. The cubic root of 23725009 is about 287.3439970286.

It can be divided in two parts, 2372 and 5009, that added together give a triangular number (7381 = T₁₂₁).

The spelling of 23725009 in words is "twenty-three million, seven hundred twenty-five thousand, nine".