25672 has 8 divisors (see below), whose sum is σ = 48150. Its totient is φ = 12832.

The previous prime is 25667. The next prime is 25673. The reversal of 25672 is 27652.

It can be written as a sum of positive squares in only one way, i.e., 21316 + 4356 = 146^2 + 66^2 .

It is a tau number, because it is divible by the number of its divisors (8).

It is a d-powerful number, because it can be written as 2⁹ + 5³ + 6² + 7⁵ + 2¹³ .

It is an alternating number because its digits alternate between even and odd.

It is a nialpdrome in base 8.

It is not an unprimeable number, because it can be changed into a prime (25673) by changing a digit.

25672 is an untouchable number, because it is not equal to the sum of proper divisors of any number.

It is a pernicious number, because its binary representation contains a prime number (5) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1597 + ... + 1612.

2²⁵⁶⁷² is an apocalyptic number.

It is an amenable number.

25672 is a deficient number, since it is larger than the sum of its proper divisors (22478).

25672 is a wasteful number, since it uses less digits than its factorization.

25672 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3215 (or 3211 counting only the distinct ones).

The product of its digits is 840, while the sum is 22.

The square root of 25672 is about 160.2248420190. The cubic root of 25672 is about 29.4998563624.

The spelling of 25672 in words is "twenty-five thousand, six hundred seventy-two".