252641279 has 8 divisors (see below), whose sum is σ = 275756880. Its totient is φ = 229550400.

The previous prime is 252641261. The next prime is 252641287. The reversal of 252641279 is 972146252.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-252641279 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (252641209) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 20057 + ... + 30125.

It is an arithmetic number, because the mean of its divisors is an integer number (34469610).

Almost surely, 2^252641279 is an apocalyptic number.

252641279 is a deficient number, since it is larger than the sum of its proper divisors (23115601).

252641279 is a wasteful number, since it uses less digits than its factorization.

252641279 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12361.

The product of its digits is 60480, while the sum is 38.

The square root of 252641279 is about 15894.6934226490. The cubic root of 252641279 is about 632.1712927983.

The spelling of 252641279 in words is "two hundred fifty-two million, six hundred forty-one thousand, two hundred seventy-nine".