25223331441 has 32 divisors (see below), whose sum is σ = 42037632000. Its totient is φ = 13069298880.

The previous prime is 25223331407. The next prime is 25223331449. The reversal of 25223331441 is 14413332252.

It is not a de Polignac number, because 25223331441 - 2⁹ = 25223330929 is a prime.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 25223331399 and 25223331408.

It is not an unprimeable number, because it can be changed into a prime (25223331449) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 50491 + ... + 230208.

It is an arithmetic number, because the mean of its divisors is an integer number (1313676000).

Almost surely, 2^25223331441 is an apocalyptic number.

25223331441 is a gapful number since it is divisible by the number (21) formed by its first and last digit.

It is an amenable number.

25223331441 is a deficient number, since it is larger than the sum of its proper divisors (16814300559).

25223331441 is a wasteful number, since it uses less digits than its factorization.

25223331441 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 281109.

The product of its digits is 17280, while the sum is 30.

Adding to 25223331441 its reverse (14413332252), we get a palindrome (39636663693).

The spelling of 25223331441 in words is "twenty-five billion, two hundred twenty-three million, three hundred thirty-one thousand, four hundred forty-one".