252920722 has 8 divisors (see below), whose sum is σ = 380617776. Its totient is φ = 126048132.

The previous prime is 252920699. The next prime is 252920729. The reversal of 252920722 is 227029252.

252920722 is digitally balanced in base 3, 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 an unprimeable number, because it can be changed into a prime (252920729) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 205348 + ... + 206575.

It is an arithmetic number, because the mean of its divisors is an integer number (47577222).

Almost surely, 2^252920722 is an apocalyptic number.

252920722 is a deficient number, since it is larger than the sum of its proper divisors (127697054).

252920722 is a wasteful number, since it uses less digits than its factorization.

252920722 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 412232.

The product of its (nonzero) digits is 10080, while the sum is 31.

The square root of 252920722 is about 15903.4814427533. The cubic root of 252920722 is about 632.4042855368.

Adding to 252920722 its reverse (227029252), we get a palindrome (479949974).

The spelling of 252920722 in words is "two hundred fifty-two million, nine hundred twenty thousand, seven hundred twenty-two".