25131434043 has 8 divisors (see below), whose sum is σ = 33709229568. Its totient is φ = 16653963944.

The previous prime is 25131433993. The next prime is 25131434047. The reversal of 25131434043 is 34043413152.

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

It is a cyclic number.

It is not a de Polignac number, because 25131434043 - 2¹⁸ = 25131171899 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 25131434043.

It is not an unprimeable number, because it can be changed into a prime (25131434047) 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 7 ways as a sum of consecutive naturals, for example, 25080771 + ... + 25081772.

It is an arithmetic number, because the mean of its divisors is an integer number (4213653696).

Almost surely, 2^25131434043 is an apocalyptic number.

25131434043 is a deficient number, since it is larger than the sum of its proper divisors (8577795525).

25131434043 is a wasteful number, since it uses less digits than its factorization.

25131434043 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 50162713.

The product of its (nonzero) digits is 17280, while the sum is 30.

Adding to 25131434043 its reverse (34043413152), we get a palindrome (59174847195).

The spelling of 25131434043 in words is "twenty-five billion, one hundred thirty-one million, four hundred thirty-four thousand, forty-three".