25000430013 has 12 divisors (see below), whose sum is σ = 38889557980. Its totient is φ = 15384879936.

The previous prime is 25000430011. The next prime is 25000430141. The reversal of 25000430013 is 31003400052.

It can be written as a sum of positive squares in 2 ways, for example, as 12733316964 + 12267113049 = 112842^2 + 110757^2 .

It is not a de Polignac number, because 25000430013 - 2¹ = 25000430011 is a prime.

It is a super-2 number, since 2×25000430013² (a number of 22 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (25000430011) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 106839328 + ... + 106839561.

Almost surely, 2^25000430013 is an apocalyptic number.

It is an amenable number.

25000430013 is a deficient number, since it is larger than the sum of its proper divisors (13889127967).

25000430013 is a wasteful number, since it uses less digits than its factorization.

25000430013 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 213678908 (or 213678905 counting only the distinct ones).

The product of its (nonzero) digits is 360, while the sum is 18.

Adding to 25000430013 its reverse (31003400052), we get a palindrome (56003830065).

The spelling of 25000430013 in words is "twenty-five billion, four hundred thirty thousand, thirteen".