25164005 has 8 divisors (see below), whose sum is σ = 30318624. Its totient is φ = 20050000.

The previous prime is 25163993. The next prime is 25164011. The reversal of 25164005 is 50046152.

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

It is not a de Polignac number, because 25164005 - 2¹⁸ = 24901861 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 8771 + ... + 11280.

It is an arithmetic number, because the mean of its divisors is an integer number (3789828).

Almost surely, 2^25164005 is an apocalyptic number.

It is an amenable number.

25164005 is a deficient number, since it is larger than the sum of its proper divisors (5154619).

25164005 is a wasteful number, since it uses less digits than its factorization.

25164005 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 20307.

The product of its (nonzero) digits is 1200, while the sum is 23.

The square root of 25164005 is about 5016.3736902268. The cubic root of 25164005 is about 293.0397853929.

The spelling of 25164005 in words is "twenty-five million, one hundred sixty-four thousand, five".