8432133725 has 12 divisors (see below), whose sum is σ = 10551774420. Its totient is φ = 6683817600.

The previous prime is 8432133643. The next prime is 8432133733. The reversal of 8432133725 is 5273312348.

It is a happy number.

It can be written as a sum of positive squares in 6 ways, for example, as 49266361 + 8382867364 = 7019^2 + 91558^2 .

It is a de Polignac number, because none of the positive numbers 2^k-8432133725 is a prime.

It is a super-2 number, since 2×8432133725² (a number of 21 digits) contains 22 as substring.

It is a Curzon number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 1544456 + ... + 1549905.

It is an arithmetic number, because the mean of its divisors is an integer number (879314535).

Almost surely, 2^8432133725 is an apocalyptic number.

It is an amenable number.

8432133725 is a deficient number, since it is larger than the sum of its proper divisors (2119640695).

8432133725 is a wasteful number, since it uses less digits than its factorization.

8432133725 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3094480 (or 3094475 counting only the distinct ones).

The product of its digits is 120960, while the sum is 38.

The square root of 8432133725 is about 91826.6504071667. The cubic root of 8432133725 is about 2035.3815265037.

The spelling of 8432133725 in words is "eight billion, four hundred thirty-two million, one hundred thirty-three thousand, seven hundred twenty-five".