64425069 has 12 divisors (see below), whose sum is σ = 93135900. Its totient is φ = 42914304.

The previous prime is 64425059. The next prime is 64425071. The reversal of 64425069 is 96052446.

64425069 is a `hidden beast` number, since 644 + 2 + 5 + 0 + 6 + 9 = 666.

It can be written as a sum of positive squares in 2 ways, for example, as 49702500 + 14722569 = 7050^2 + 3837^2 .

It is not a de Polignac number, because 64425069 - 2¹⁷ = 64293997 is a prime.

It is a super-2 number, since 2×64425069² = 8301179031309522, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (64425059) 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, 12877 + ... + 17165.

It is an arithmetic number, because the mean of its divisors is an integer number (7761325).

Almost surely, 2^64425069 is an apocalyptic number.

It is an amenable number.

64425069 is a deficient number, since it is larger than the sum of its proper divisors (28710831).

64425069 is a wasteful number, since it uses less digits than its factorization.

64425069 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5964 (or 5961 counting only the distinct ones).

The product of its (nonzero) digits is 51840, while the sum is 36.

The square root of 64425069 is about 8026.5228461645. The cubic root of 64425069 is about 400.8836070757.

It can be divided in two parts, 6442 and 5069, that added together give a palindrome (11511).

The spelling of 64425069 in words is "sixty-four million, four hundred twenty-five thousand, sixty-nine".