25001441 has 8 divisors (see below), whose sum is σ = 26628264. Its totient is φ = 23392000.

The previous prime is 25001401. The next prime is 25001453. The reversal of 25001441 is 14410052.

It can be written as a sum of positive squares in 4 ways, for example, as 6477025 + 18524416 = 2545^2 + 4304^2 .

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

It is not a de Polignac number, because 25001441 - 2⁶ = 25001377 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (17).

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (25001401) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1310 + ... + 7191.

It is an arithmetic number, because the mean of its divisors is an integer number (3328533).

Almost surely, 2^25001441 is an apocalyptic number.

It is an amenable number.

25001441 is a deficient number, since it is larger than the sum of its proper divisors (1626823).

25001441 is a wasteful number, since it uses less digits than its factorization.

25001441 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8691.

The product of its (nonzero) digits is 160, while the sum is 17.

The square root of 25001441 is about 5000.1440979236. The cubic root of 25001441 is about 292.4073917261.

Adding to 25001441 its reverse (14410052), we get a palindrome (39411493).

The spelling of 25001441 in words is "twenty-five million, one thousand, four hundred forty-one".