252012545 has 4 divisors (see below), whose sum is σ = 302415060. Its totient is φ = 201610032.

The previous prime is 252012529. The next prime is 252012559. The reversal of 252012545 is 545210252.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 85396081 + 166616464 = 9241^2 + 12908^2 .

It is a cyclic number.

It is not a de Polignac number, because 252012545 - 2⁴ = 252012529 is a prime.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 25201250 + ... + 25201259.

It is an arithmetic number, because the mean of its divisors is an integer number (75603765).

Almost surely, 2^252012545 is an apocalyptic number.

It is an amenable number.

252012545 is a deficient number, since it is larger than the sum of its proper divisors (50402515).

252012545 is an equidigital number, since it uses as much as digits as its factorization.

252012545 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 50402514.

The product of its (nonzero) digits is 4000, while the sum is 26.

The square root of 252012545 is about 15874.9029918296. The cubic root of 252012545 is about 631.6464409054.

Adding to 252012545 its reverse (545210252), we get a palindrome (797222797).

The spelling of 252012545 in words is "two hundred fifty-two million, twelve thousand, five hundred forty-five".