64425459 has 8 divisors (see below), whose sum is σ = 98172160. Its totient is φ = 36814536.

The previous prime is 64425457. The next prime is 64425467. The reversal of 64425459 is 95452446.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 64425459 - 2¹ = 64425457 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (64425457) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1533919 + ... + 1533960.

It is an arithmetic number, because the mean of its divisors is an integer number (12271520).

Almost surely, 2^64425459 is an apocalyptic number.

64425459 is a deficient number, since it is larger than the sum of its proper divisors (33746701).

64425459 is a wasteful number, since it uses less digits than its factorization.

64425459 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3067889.

The product of its digits is 172800, while the sum is 39.

The square root of 64425459 is about 8026.5471405829. The cubic root of 64425459 is about 400.8844159963.

The spelling of 64425459 in words is "sixty-four million, four hundred twenty-five thousand, four hundred fifty-nine".