25551241 has 8 divisors (see below), whose sum is σ = 26536104. Its totient is φ = 24583680.

The previous prime is 25551217. The next prime is 25551263. The reversal of 25551241 is 14215552.

It can be written as a sum of positive squares in 4 ways, for example, as 3225616 + 22325625 = 1796^2 + 4725^2 .

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

It is a cyclic number.

It is not a de Polignac number, because 25551241 - 2¹¹ = 25549193 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (25551271) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1276 + ... + 7261.

It is an arithmetic number, because the mean of its divisors is an integer number (3317013).

Almost surely, 2^25551241 is an apocalyptic number.

It is an amenable number.

25551241 is a deficient number, since it is larger than the sum of its proper divisors (984863).

25551241 is an equidigital number, since it uses as much as digits as its factorization.

25551241 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8651.

The product of its digits is 2000, while the sum is 25.

The square root of 25551241 is about 5054.8235379685. The cubic root of 25551241 is about 294.5352867074.

Adding to 25551241 its reverse (14215552), we get a palindrome (39766793).

The spelling of 25551241 in words is "twenty-five million, five hundred fifty-one thousand, two hundred forty-one".