25013105234 has 8 divisors (see below), whose sum is σ = 40405785420. Its totient is φ = 11544510096.

The previous prime is 25013105233. The next prime is 25013105251. The reversal of 25013105234 is 43250131052.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 22394224609 + 2618880625 = 149647^2 + 51175^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a Harshad number since it is a multiple of its sum of digits (26), and also a Moran number because the ratio is a prime number: 962042509 = 25013105234 / (2 + 5 + 0 + 1 + 3 + 1 + 0 + 5 + 2 + 3 + 4).

It is not an unprimeable number, because it can be changed into a prime (25013105231) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 481021229 + ... + 481021280.

Almost surely, 2^25013105234 is an apocalyptic number.

25013105234 is a deficient number, since it is larger than the sum of its proper divisors (15392680186).

25013105234 is a wasteful number, since it uses less digits than its factorization.

25013105234 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 962042524.

The product of its (nonzero) digits is 3600, while the sum is 26.

Adding to 25013105234 its reverse (43250131052), we get a palindrome (68263236286).

The spelling of 25013105234 in words is "twenty-five billion, thirteen million, one hundred five thousand, two hundred thirty-four".