25234353405 has 24 divisors (see below), whose sum is σ = 44293217280. Its totient is φ = 13287961440.

The previous prime is 25234353379. The next prime is 25234353409. The reversal of 25234353405 is 50435343252.

25234353405 is a `hidden beast` number, since 2 + 523 + 43 + 53 + 40 + 5 = 666.

It is not a de Polignac number, because 25234353405 - 2⁶ = 25234353341 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 25234353405.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (25234353409) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 3545581 + ... + 3552690.

It is an arithmetic number, because the mean of its divisors is an integer number (1845550720).

Almost surely, 2^25234353405 is an apocalyptic number.

It is an amenable number.

25234353405 is a deficient number, since it is larger than the sum of its proper divisors (19058863875).

25234353405 is a wasteful number, since it uses less digits than its factorization.

25234353405 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7098361 (or 7098358 counting only the distinct ones).

The product of its (nonzero) digits is 216000, while the sum is 36.

Adding to 25234353405 its reverse (50435343252), we get a palindrome (75669696657).

The spelling of 25234353405 in words is "twenty-five billion, two hundred thirty-four million, three hundred fifty-three thousand, four hundred five".