252782613 has 20 divisors (see below), whose sum is σ = 378055788. Its totient is φ = 168324480.

The previous prime is 252782611. The next prime is 252782623. The reversal of 252782613 is 316287252.

It can be written as a sum of positive squares in 2 ways, for example, as 57426084 + 195356529 = 7578^2 + 13977^2 .

It is not a de Polignac number, because 252782613 - 2¹ = 252782611 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (252782611) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 19 ways as a sum of consecutive naturals, for example, 109095 + ... + 111387.

Almost surely, 2^252782613 is an apocalyptic number.

It is an amenable number.

252782613 is a deficient number, since it is larger than the sum of its proper divisors (125273175).

252782613 is a wasteful number, since it uses less digits than its factorization.

252782613 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3666 (or 3657 counting only the distinct ones).

The product of its digits is 40320, while the sum is 36.

The square root of 252782613 is about 15899.1387502594. The cubic root of 252782613 is about 632.2891550917.

The spelling of 252782613 in words is "two hundred fifty-two million, seven hundred eighty-two thousand, six hundred thirteen".