25472161 has 8 divisors (see below), whose sum is σ = 29925504. Its totient is φ = 21375120.

The previous prime is 25472159. The next prime is 25472177. The reversal of 25472161 is 16127452.

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

It is not a de Polignac number, because 25472161 - 2¹ = 25472159 is a prime.

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

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (25472561) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 88921 + ... + 89206.

It is an arithmetic number, because the mean of its divisors is an integer number (3740688).

Almost surely, 2^25472161 is an apocalyptic number.

It is an amenable number.

25472161 is a deficient number, since it is larger than the sum of its proper divisors (4453343).

25472161 is a wasteful number, since it uses less digits than its factorization.

25472161 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 178151.

The product of its digits is 3360, while the sum is 28.

The square root of 25472161 is about 5046.9952446976. The cubic root of 25472161 is about 294.2311146456.

The spelling of 25472161 in words is "twenty-five million, four hundred seventy-two thousand, one hundred sixty-one".