6425430133 has 4 divisors (see below), whose sum is σ = 6429915468. Its totient is φ = 6420944800.

The previous prime is 6425430119. The next prime is 6425430173. The reversal of 6425430133 is 3310345246.

6425430133 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

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

It can be written as a sum of positive squares in 2 ways, for example, as 3384679684 + 3040750449 = 58178^2 + 55143^2 .

It is a cyclic number.

It is not a de Polignac number, because 6425430133 - 2²⁹ = 5888559221 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 6425430095 and 6425430104.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (6425430103) 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, 2240518 + ... + 2243383.

It is an arithmetic number, because the mean of its divisors is an integer number (1607478867).

Almost surely, 2^6425430133 is an apocalyptic number.

It is an amenable number.

6425430133 is a deficient number, since it is larger than the sum of its proper divisors (4485335).

6425430133 is a wasteful number, since it uses less digits than its factorization.

6425430133 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4485334.

The product of its (nonzero) digits is 25920, while the sum is 31.

The square root of 6425430133 is about 80158.7807604382. The cubic root of 6425430133 is about 1859.0913715334.

Adding to 6425430133 its reverse (3310345246), we get a palindrome (9735775379).

The spelling of 6425430133 in words is "six billion, four hundred twenty-five million, four hundred thirty thousand, one hundred thirty-three".