25421305323 has 8 divisors (see below), whose sum is σ = 34067130768. Its totient is φ = 16861508384.

The previous prime is 25421305297. The next prime is 25421305333. The reversal of 25421305323 is 32350312452.

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 25421305323 - 2⁸ = 25421305067 is a prime.

It is not an unprimeable number, because it can be changed into a prime (25421305333) 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, 21506436 + ... + 21507617.

It is an arithmetic number, because the mean of its divisors is an integer number (4258391346).

Almost surely, 2^25421305323 is an apocalyptic number.

25421305323 is a deficient number, since it is larger than the sum of its proper divisors (8645825445).

25421305323 is a wasteful number, since it uses less digits than its factorization.

25421305323 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 43014253.

The product of its (nonzero) digits is 21600, while the sum is 30.

Adding to 25421305323 its reverse (32350312452), we get a palindrome (57771617775).

The spelling of 25421305323 in words is "twenty-five billion, four hundred twenty-one million, three hundred five thousand, three hundred twenty-three".