64170425 has 12 divisors (see below), whose sum is σ = 86805456. Its totient is φ = 46669200.

The previous prime is 64170419. The next prime is 64170443. The reversal of 64170425 is 52407146.

It is not a de Polignac number, because 64170425 - 2¹² = 64166329 is a prime.

It is a hoax number, since the sum of its digits (29) coincides with the sum of the digits of its distinct prime factors.

It is a Duffinian 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, 116399 + ... + 116948.

It is an arithmetic number, because the mean of its divisors is an integer number (7233788).

Almost surely, 2^64170425 is an apocalyptic number.

It is an amenable number.

64170425 is a deficient number, since it is larger than the sum of its proper divisors (22635031).

64170425 is a wasteful number, since it uses less digits than its factorization.

64170425 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 233368 (or 233363 counting only the distinct ones).

The product of its (nonzero) digits is 6720, while the sum is 29.

The square root of 64170425 is about 8010.6444809391. The cubic root of 64170425 is about 400.3547373938.

The spelling of 64170425 in words is "sixty-four million, one hundred seventy thousand, four hundred twenty-five".