64425403 has 8 divisors (see below), whose sum is σ = 73705472. Its totient is φ = 55164456.

The previous prime is 64425401. The next prime is 64425419. The reversal of 64425403 is 30452446.

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

It is a cyclic number.

It is not a de Polignac number, because 64425403 - 2¹ = 64425401 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (64425401) 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, 3376 + ... + 11842.

It is an arithmetic number, because the mean of its divisors is an integer number (9213184).

Almost surely, 2^64425403 is an apocalyptic number.

64425403 is a deficient number, since it is larger than the sum of its proper divisors (9280069).

64425403 is a wasteful number, since it uses less digits than its factorization.

64425403 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9561.

The product of its (nonzero) digits is 11520, while the sum is 28.

The square root of 64425403 is about 8026.5436521581. The cubic root of 64425403 is about 400.8842998438.

Adding to 64425403 its reverse (30452446), we get a palindrome (94877849).

The spelling of 64425403 in words is "sixty-four million, four hundred twenty-five thousand, four hundred three".