25541423441 has 8 divisors (see below), whose sum is σ = 27105471360. Its totient is φ = 23984221248.

The previous prime is 25541423429. The next prime is 25541423459. The reversal of 25541423441 is 14432414552.

It is a happy number.

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

It is a de Polignac number, because none of the positive numbers 2^k-25541423441 is a prime.

It is a super-2 number, since 2×25541423441² (a number of 22 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (25541423461) 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, 1703741 + ... + 1718666.

It is an arithmetic number, because the mean of its divisors is an integer number (3388183920).

Almost surely, 2^25541423441 is an apocalyptic number.

It is an amenable number.

25541423441 is a deficient number, since it is larger than the sum of its proper divisors (1564047919).

25541423441 is a wasteful number, since it uses less digits than its factorization.

25541423441 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3422863.

The product of its digits is 76800, while the sum is 35.

Adding to 25541423441 its reverse (14432414552), we get a palindrome (39973837993).

The spelling of 25541423441 in words is "twenty-five billion, five hundred forty-one million, four hundred twenty-three thousand, four hundred forty-one".