25429405156 has 27 divisors (see below), whose sum is σ = 45177297123. Its totient is φ = 12524459640.

The previous prime is 25429405087. The next prime is 25429405159. The reversal of 25429405156 is 65150492452.

The square root of 25429405156 is 159466.

It is a perfect power (a square), and thus also a powerful number.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (25429405159) 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 8 ways as a sum of consecutive naturals, for example, 22643611 + ... + 22644733.

Almost surely, 2^25429405156 is an apocalyptic number.

25429405156 is the 159466-th square number.

It is an amenable number.

25429405156 is a deficient number, since it is larger than the sum of its proper divisors (19747891967).

25429405156 is an frugal number, since it uses more digits than its factorization.

25429405156 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2392 (or 1196 counting only the distinct ones).

The product of its (nonzero) digits is 432000, while the sum is 43.

The spelling of 25429405156 in words is "twenty-five billion, four hundred twenty-nine million, four hundred five thousand, one hundred fifty-six".