252513538 has 16 divisors (see below), whose sum is σ = 392647680. Its totient is φ = 121665600.

The previous prime is 252513511. The next prime is 252513539. The reversal of 252513538 is 835315252.

It is not an unprimeable number, because it can be changed into a prime (252513539) 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 7 ways as a sum of consecutive naturals, for example, 6298 + ... + 23338.

It is an arithmetic number, because the mean of its divisors is an integer number (24540480).

Almost surely, 2^252513538 is an apocalyptic number.

252513538 is a deficient number, since it is larger than the sum of its proper divisors (140134142).

252513538 is a wasteful number, since it uses less digits than its factorization.

252513538 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 17313.

The product of its digits is 36000, while the sum is 34.

The square root of 252513538 is about 15890.6745608863. The cubic root of 252513538 is about 632.0647282553.

The spelling of 252513538 in words is "two hundred fifty-two million, five hundred thirteen thousand, five hundred thirty-eight".