25234304221 has 8 divisors (see below), whose sum is σ = 28841044544. Its totient is φ = 21628023840.

The previous prime is 25234304201. The next prime is 25234304237. The reversal of 25234304221 is 12240343252.

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 25234304221 - 2⁹ = 25234303709 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 25234304221.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (25234304201) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 11926 + ... + 224968.

It is an arithmetic number, because the mean of its divisors is an integer number (3605130568).

Almost surely, 2^25234304221 is an apocalyptic number.

It is an amenable number.

25234304221 is a deficient number, since it is larger than the sum of its proper divisors (3606740323).

25234304221 is a wasteful number, since it uses less digits than its factorization.

25234304221 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 229971.

The product of its (nonzero) digits is 11520, while the sum is 28.

Adding to 25234304221 its reverse (12240343252), we get a palindrome (37474647473).

The spelling of 25234304221 in words is "twenty-five billion, two hundred thirty-four million, three hundred four thousand, two hundred twenty-one".