252866545 has 8 divisors (see below), whose sum is σ = 306386496. Its totient is φ = 200328816.

The previous prime is 252866539. The next prime is 252866567. The reversal of 252866545 is 545668252.

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-252866545 is a prime.

It is a Duffinian number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 244987 + ... + 246016.

It is an arithmetic number, because the mean of its divisors is an integer number (38298312).

Almost surely, 2^252866545 is an apocalyptic number.

It is an amenable number.

252866545 is a deficient number, since it is larger than the sum of its proper divisors (53519951).

252866545 is a wasteful number, since it uses less digits than its factorization.

252866545 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 491111.

The product of its digits is 576000, while the sum is 43.

The square root of 252866545 is about 15901.7780452376. The cubic root of 252866545 is about 632.3591274950.

The spelling of 252866545 in words is "two hundred fifty-two million, eight hundred sixty-six thousand, five hundred forty-five".