252117379 has 4 divisors (see below), whose sum is σ = 255668400. Its totient is φ = 248566360.

The previous prime is 252117377. The next prime is 252117413. The reversal of 252117379 is 973711252.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 252117379 - 2¹ = 252117377 is a prime.

It is a Duffinian number.

It is a zygodrome in base 2.

It is not an unprimeable number, because it can be changed into a prime (252117373) 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 3 ways as a sum of consecutive naturals, for example, 1775404 + ... + 1775545.

It is an arithmetic number, because the mean of its divisors is an integer number (63917100).

Almost surely, 2^252117379 is an apocalyptic number.

252117379 is a deficient number, since it is larger than the sum of its proper divisors (3551021).

252117379 is an equidigital number, since it uses as much as digits as its factorization.

252117379 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3551020.

The product of its digits is 26460, while the sum is 37.

The square root of 252117379 is about 15878.2045269608. The cubic root of 252117379 is about 631.7340143807.

It can be divided in two parts, 2521173 and 79, that added together give a palindrome (2521252).

The spelling of 252117379 in words is "two hundred fifty-two million, one hundred seventeen thousand, three hundred seventy-nine".