652665593 has 4 divisors (see below), whose sum is σ = 668584308. Its totient is φ = 636746880.

The previous prime is 652665589. The next prime is 652665617. The reversal of 652665593 is 395566256.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 30063289 + 622602304 = 5483^2 + 24952^2 .

It is a cyclic number.

It is not a de Polignac number, because 652665593 - 2² = 652665589 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (652665193) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 7959296 + ... + 7959377.

It is an arithmetic number, because the mean of its divisors is an integer number (167146077).

Almost surely, 2^652665593 is an apocalyptic number.

It is an amenable number.

652665593 is a deficient number, since it is larger than the sum of its proper divisors (15918715).

652665593 is a wasteful number, since it uses less digits than its factorization.

652665593 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 15918714.

The product of its digits is 1458000, while the sum is 47.

The square root of 652665593 is about 25547.3206618620. The cubic root of 652665593 is about 867.4216138925.

The spelling of 652665593 in words is "six hundred fifty-two million, six hundred sixty-five thousand, five hundred ninety-three".