652616881 has 16 divisors (see below), whose sum is σ = 782005248. Its totient is φ = 532501200.

The previous prime is 652616863. The next prime is 652616897. The reversal of 652616881 is 188616256.

It is not a de Polignac number, because 652616881 - 2⁷ = 652616753 is a prime.

It is a super-2 number, since 2×652616881² = 851817586732336322, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (652616801) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 24366 + ... + 43576.

It is an arithmetic number, because the mean of its divisors is an integer number (48875328).

Almost surely, 2^652616881 is an apocalyptic number.

It is an amenable number.

652616881 is a deficient number, since it is larger than the sum of its proper divisors (129388367).

652616881 is a wasteful number, since it uses less digits than its factorization.

652616881 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 19452.

The product of its digits is 138240, while the sum is 43.

The square root of 652616881 is about 25546.3672759944. The cubic root of 652616881 is about 867.4000332171.

The spelling of 652616881 in words is "six hundred fifty-two million, six hundred sixteen thousand, eight hundred eighty-one".