64025605 has 12 divisors (see below), whose sum is σ = 89374860. Its totient is φ = 43903104.

The previous prime is 64025597. The next prime is 64025623. The reversal of 64025605 is 50652046.

It can be written as a sum of positive squares in 2 ways, for example, as 23804641 + 40220964 = 4879^2 + 6342^2 .

It is not a de Polignac number, because 64025605 - 2³ = 64025597 is a prime.

It is a congruent 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, 130420 + ... + 130909.

It is an arithmetic number, because the mean of its divisors is an integer number (7447905).

Almost surely, 2^64025605 is an apocalyptic number.

It is an amenable number.

64025605 is a deficient number, since it is larger than the sum of its proper divisors (25349255).

64025605 is a wasteful number, since it uses less digits than its factorization.

64025605 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 261348 (or 261341 counting only the distinct ones).

The product of its (nonzero) digits is 7200, while the sum is 28.

The square root of 64025605 is about 8001.6001524695. The cubic root of 64025605 is about 400.0533366377.

The spelling of 64025605 in words is "sixty-four million, twenty-five thousand, six hundred five".