252774513 has 20 divisors (see below), whose sum is σ = 399815460. Its totient is φ = 158602752.

The previous prime is 252774503. The next prime is 252774523. The reversal of 252774513 is 315477252.

It is an interprime number because it is at equal distance from previous prime (252774503) and next prime (252774523).

It can be written as a sum of positive squares in 2 ways, for example, as 148060224 + 104714289 = 12168^2 + 10233^2 .

It is not a de Polignac number, because 252774513 - 2⁴ = 252774497 is a prime.

It is not an unprimeable number, because it can be changed into a prime (252774503) 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, 90408 + ... + 93161.

It is an arithmetic number, because the mean of its divisors is an integer number (19990773).

Almost surely, 2^252774513 is an apocalyptic number.

It is an amenable number.

252774513 is a deficient number, since it is larger than the sum of its proper divisors (147040947).

252774513 is a wasteful number, since it uses less digits than its factorization.

252774513 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 183598 (or 183589 counting only the distinct ones).

The product of its digits is 58800, while the sum is 36.

The square root of 252774513 is about 15898.8840174397. The cubic root of 252774513 is about 632.2824014667.

The spelling of 252774513 in words is "two hundred fifty-two million, seven hundred seventy-four thousand, five hundred thirteen".