25441601 has 4 divisors (see below), whose sum is σ = 25612500. Its totient is φ = 25270704.

The previous prime is 25441583. The next prime is 25441649. The reversal of 25441601 is 10614452.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 12082576 + 13359025 = 3476^2 + 3655^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-25441601 is a prime.

It is a super-2 number, since 2×25441601² = 1294550122886402, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (25441651) 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, 85226 + ... + 85523.

It is an arithmetic number, because the mean of its divisors is an integer number (6403125).

Almost surely, 2^25441601 is an apocalyptic number.

It is an amenable number.

25441601 is a deficient number, since it is larger than the sum of its proper divisors (170899).

25441601 is a wasteful number, since it uses less digits than its factorization.

25441601 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 170898.

The product of its (nonzero) digits is 960, while the sum is 23.

The square root of 25441601 is about 5043.9667921191. The cubic root of 25441601 is about 294.1134004979.

The spelling of 25441601 in words is "twenty-five million, four hundred forty-one thousand, six hundred one".