652021605 has 24 divisors (see below), whose sum is σ = 1166630400. Its totient is φ = 336526560.

The previous prime is 652021597. The next prime is 652021627. The reversal of 652021605 is 506120256.

652021605 is a `hidden beast` number, since 6 + 52 + 0 + 2 + 1 + 605 = 666.

It is not a de Polignac number, because 652021605 - 2³ = 652021597 is a prime.

It is a Curzon number.

It is a congruent number.

It is an unprimeable number.

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 23 ways as a sum of consecutive naturals, for example, 232305 + ... + 235094.

It is an arithmetic number, because the mean of its divisors is an integer number (48609600).

Almost surely, 2^652021605 is an apocalyptic number.

It is an amenable number.

652021605 is a deficient number, since it is larger than the sum of its proper divisors (514608795).

652021605 is a wasteful number, since it uses less digits than its factorization.

652021605 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 467441 (or 467438 counting only the distinct ones).

The product of its (nonzero) digits is 3600, while the sum is 27.

The square root of 652021605 is about 25534.7137246533. The cubic root of 652021605 is about 867.1362237711.

The spelling of 652021605 in words is "six hundred fifty-two million, twenty-one thousand, six hundred five".