252422447 has 8 divisors (see below), whose sum is σ = 263771520. Its totient is φ = 241104600.

The previous prime is 252422441. The next prime is 252422497. The reversal of 252422447 is 744224252.

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-252422447 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 (252422441) 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, 9572 + ... + 24422.

It is an arithmetic number, because the mean of its divisors is an integer number (32971440).

Almost surely, 2^252422447 is an apocalyptic number.

252422447 is a deficient number, since it is larger than the sum of its proper divisors (11349073).

252422447 is a wasteful number, since it uses less digits than its factorization.

252422447 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 15613.

The product of its digits is 35840, while the sum is 32.

The square root of 252422447 is about 15887.8081244708. The cubic root of 252422447 is about 631.9887160499.

Adding to 252422447 its reverse (744224252), we get a palindrome (996646699).

The spelling of 252422447 in words is "two hundred fifty-two million, four hundred twenty-two thousand, four hundred forty-seven".