25672541 has 4 divisors (see below), whose sum is σ = 25716000. Its totient is φ = 25629084.

The previous prime is 25672529. The next prime is 25672547. The reversal of 25672541 is 14527652.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 25672541 - 2¹⁴ = 25656157 is a prime.

It is a super-2 number, since 2×25672541² = 1318158722793362, which contains 22 as substring.

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

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 25672498 and 25672507.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (25672547) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 20831 + ... + 22028.

It is an arithmetic number, because the mean of its divisors is an integer number (6429000).

Almost surely, 2^25672541 is an apocalyptic number.

It is an amenable number.

25672541 is a deficient number, since it is larger than the sum of its proper divisors (43459).

25672541 is an equidigital number, since it uses as much as digits as its factorization.

25672541 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 43458.

The product of its digits is 16800, while the sum is 32.

The square root of 25672541 is about 5066.8077721579. The cubic root of 25672541 is about 295.0006358312. Note that the first 3 decimals are identical.

The spelling of 25672541 in words is "twenty-five million, six hundred seventy-two thousand, five hundred forty-one".