25032143434 has 4 divisors (see below), whose sum is σ = 37548215154. Its totient is φ = 12516071716.

The previous prime is 25032143419. The next prime is 25032143447. The reversal of 25032143434 is 43434123052.

It is a happy number.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in only one way, i.e., 12634434409 + 12397709025 = 112403^2 + 111345^2 .

It is an alternating number because its digits alternate between even and odd.

It is a junction number, because it is equal to n+sod(n) for n = 25032143396 and 25032143405.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6258035857 + ... + 6258035860.

Almost surely, 2^25032143434 is an apocalyptic number.

25032143434 is a deficient number, since it is larger than the sum of its proper divisors (12516071720).

25032143434 is a wasteful number, since it uses less digits than its factorization.

25032143434 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12516071719.

The product of its (nonzero) digits is 34560, while the sum is 31.

Adding to 25032143434 its reverse (43434123052), we get a palindrome (68466266486).

The spelling of 25032143434 in words is "twenty-five billion, thirty-two million, one hundred forty-three thousand, four hundred thirty-four".