252449979 has 8 divisors (see below), whose sum is σ = 354315840. Its totient is φ = 159442056.

The previous prime is 252449963. The next prime is 252450041. The reversal of 252449979 is 979944252.

252449979 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 252449979 - 2⁴ = 252449963 is a prime.

It is a Smith number, since the sum of its digits (51) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is not an unprimeable number, because it can be changed into a prime (252449929) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2214417 + ... + 2214530.

It is an arithmetic number, because the mean of its divisors is an integer number (44289480).

Almost surely, 2^252449979 is an apocalyptic number.

252449979 is a deficient number, since it is larger than the sum of its proper divisors (101865861).

252449979 is a wasteful number, since it uses less digits than its factorization.

252449979 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4428969.

The product of its digits is 1632960, while the sum is 51.

The square root of 252449979 is about 15888.6745513904. The cubic root of 252449979 is about 632.0116924545.

The spelling of 252449979 in words is "two hundred fifty-two million, four hundred forty-nine thousand, nine hundred seventy-nine".