25430873 has 16 divisors (see below), whose sum is σ = 29064000. Its totient is φ = 22057920.

The previous prime is 25430863. The next prime is 25430887. The reversal of 25430873 is 37803452.

It is a happy number.

It is a cyclic number.

It is not a de Polignac number, because 25430873 - 2⁴ = 25430857 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (25430813) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 36458 + ... + 37148.

It is an arithmetic number, because the mean of its divisors is an integer number (1816500).

Almost surely, 2^25430873 is an apocalyptic number.

It is an amenable number.

25430873 is a deficient number, since it is larger than the sum of its proper divisors (3633127).

25430873 is a wasteful number, since it uses less digits than its factorization.

25430873 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 872.

The product of its (nonzero) digits is 20160, while the sum is 32.

The square root of 25430873 is about 5042.9032312746. The cubic root of 25430873 is about 294.0720549322.

The spelling of 25430873 in words is "twenty-five million, four hundred thirty thousand, eight hundred seventy-three".