652777613 has 4 divisors (see below), whose sum is σ = 656551068. Its totient is φ = 649004160.

The previous prime is 652777603. The next prime is 652777649. The reversal of 652777613 is 316777256.

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 370100644 + 282676969 = 19238^2 + 16813^2 .

It is a cyclic number.

It is not a de Polignac number, because 652777613 - 2¹⁰ = 652776589 is a prime.

It is a super-2 number, since 2×652777613² = 852237224067955538, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (652777603) 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, 1886468 + ... + 1886813.

It is an arithmetic number, because the mean of its divisors is an integer number (164137767).

Almost surely, 2^652777613 is an apocalyptic number.

It is an amenable number.

652777613 is a deficient number, since it is larger than the sum of its proper divisors (3773455).

652777613 is a wasteful number, since it uses less digits than its factorization.

652777613 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3773454.

The product of its digits is 370440, while the sum is 44.

The square root of 652777613 is about 25549.5129699178. The cubic root of 652777613 is about 867.4712375751.

The spelling of 652777613 in words is "six hundred fifty-two million, seven hundred seventy-seven thousand, six hundred thirteen".