25672917 has 16 divisors (see below), whose sum is σ = 35542080. Its totient is φ = 16464000.

The previous prime is 25672909. The next prime is 25672919. The reversal of 25672917 is 71927652.

It is not a de Polignac number, because 25672917 - 2³ = 25672909 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (25672919) 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, 42417 + ... + 43017.

It is an arithmetic number, because the mean of its divisors is an integer number (2221380).

Almost surely, 2^25672917 is an apocalyptic number.

It is an amenable number.

25672917 is a deficient number, since it is larger than the sum of its proper divisors (9869163).

25672917 is a wasteful number, since it uses less digits than its factorization.

25672917 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1124.

The product of its digits is 52920, while the sum is 39.

The square root of 25672917 is about 5066.8448762519. The cubic root of 25672917 is about 295.0020760172.

The spelling of 25672917 in words is "twenty-five million, six hundred seventy-two thousand, nine hundred seventeen".