252500045 has 32 divisors (see below), whose sum is σ = 354191616. Its totient is φ = 169228800.

The previous prime is 252500041. The next prime is 252500047. The reversal of 252500045 is 540005252.

252500045 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 252500045 - 2² = 252500041 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (252500041) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 484385 + ... + 484905.

It is an arithmetic number, because the mean of its divisors is an integer number (11068488).

Almost surely, 2^252500045 is an apocalyptic number.

It is an amenable number.

252500045 is a deficient number, since it is larger than the sum of its proper divisors (101691571).

252500045 is a wasteful number, since it uses less digits than its factorization.

252500045 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 821.

The product of its (nonzero) digits is 2000, while the sum is 23.

The square root of 252500045 is about 15890.2499980334. The cubic root of 252500045 is about 632.0534699794.

Adding to 252500045 its reverse (540005252), we get a palindrome (792505297).

The spelling of 252500045 in words is "two hundred fifty-two million, five hundred thousand, forty-five".