652021563 has 8 divisors (see below), whose sum is σ = 869912848. Its totient is φ = 434405664.

The previous prime is 652021547. The next prime is 652021597. The reversal of 652021563 is 365120256.

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

It is not a de Polignac number, because 652021563 - 2⁴ = 652021547 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 652021563.

It is not an unprimeable number, because it can be changed into a prime (652021163) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 63256 + ... + 72837.

It is an arithmetic number, because the mean of its divisors is an integer number (108739106).

Almost surely, 2^652021563 is an apocalyptic number.

652021563 is a deficient number, since it is larger than the sum of its proper divisors (217891285).

652021563 is a wasteful number, since it uses less digits than its factorization.

652021563 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 137693.

The product of its (nonzero) digits is 10800, while the sum is 30.

The square root of 652021563 is about 25534.7129022435. The cubic root of 652021563 is about 867.1362051523.

The spelling of 652021563 in words is "six hundred fifty-two million, twenty-one thousand, five hundred sixty-three".