64830425 has 12 divisors (see below), whose sum is σ = 87698256. Its totient is φ = 47149200.

The previous prime is 64830421. The next prime is 64830427. The reversal of 64830425 is 52403846.

It is not a de Polignac number, because 64830425 - 2² = 64830421 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 64830391 and 64830400.

It is not an unprimeable number, because it can be changed into a prime (64830421) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 117599 + ... + 118148.

It is an arithmetic number, because the mean of its divisors is an integer number (7308188).

Almost surely, 2^64830425 is an apocalyptic number.

It is an amenable number.

64830425 is a deficient number, since it is larger than the sum of its proper divisors (22867831).

64830425 is a wasteful number, since it uses less digits than its factorization.

64830425 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 235768 (or 235763 counting only the distinct ones).

The product of its (nonzero) digits is 23040, while the sum is 32.

The square root of 64830425 is about 8051.7342852332. The cubic root of 64830425 is about 401.7226228600.

The spelling of 64830425 in words is "sixty-four million, eight hundred thirty thousand, four hundred twenty-five".