25434025413 has 4 divisors (see below), whose sum is σ = 33912033888. Its totient is φ = 16956016940.

The previous prime is 25434025387. The next prime is 25434025417. The reversal of 25434025413 is 31452043452.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 25434025413 - 2⁶ = 25434025349 is a prime.

It is a super-5 number, since 5×25434025413⁵ (a number of 53 digits) contains 55555 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (25434025417) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 4239004233 + ... + 4239004238.

It is an arithmetic number, because the mean of its divisors is an integer number (8478008472).

Almost surely, 2^25434025413 is an apocalyptic number.

It is an amenable number.

25434025413 is a deficient number, since it is larger than the sum of its proper divisors (8478008475).

25434025413 is an equidigital number, since it uses as much as digits as its factorization.

25434025413 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8478008474.

The product of its (nonzero) digits is 57600, while the sum is 33.

Adding to 25434025413 its reverse (31452043452), we get a palindrome (56886068865).

The spelling of 25434025413 in words is "twenty-five billion, four hundred thirty-four million, twenty-five thousand, four hundred thirteen".