252722745 has 24 divisors (see below), whose sum is σ = 477876672. Its totient is φ = 122532000.

The previous prime is 252722737. The next prime is 252722747. The reversal of 252722745 is 547227252.

252722745 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 252722745 - 2³ = 252722737 is a prime.

It is not an unprimeable number, because it can be changed into a prime (252722747) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 254781 + ... + 255770.

It is an arithmetic number, because the mean of its divisors is an integer number (19911528).

Almost surely, 2^252722745 is an apocalyptic number.

It is an amenable number.

252722745 is a deficient number, since it is larger than the sum of its proper divisors (225153927).

252722745 is a wasteful number, since it uses less digits than its factorization.

252722745 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 510573 (or 510570 counting only the distinct ones).

The product of its digits is 78400, while the sum is 36.

The square root of 252722745 is about 15897.2558952795. The cubic root of 252722745 is about 632.2392348915.

Adding to 252722745 its reverse (547227252), we get a palindrome (799949997).

The spelling of 252722745 in words is "two hundred fifty-two million, seven hundred twenty-two thousand, seven hundred forty-five".