1252500805 has 16 divisors (see below), whose sum is σ = 1596905280. Its totient is φ = 940384512.

The previous prime is 1252500787. The next prime is 1252500817. The reversal of 1252500805 is 5080052521.

It is a cyclic number.

It is not a de Polignac number, because 1252500805 - 2¹¹ = 1252498757 is a prime.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 51444 + ... + 71773.

It is an arithmetic number, because the mean of its divisors is an integer number (99806580).

Almost surely, 2^1252500805 is an apocalyptic number.

It is an amenable number.

1252500805 is a deficient number, since it is larger than the sum of its proper divisors (344404475).

1252500805 is a wasteful number, since it uses less digits than its factorization.

1252500805 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 123348.

The product of its (nonzero) digits is 4000, while the sum is 28.

The square root of 1252500805 is about 35390.6881114228. The cubic root of 1252500805 is about 1077.9352426154.

The spelling of 1252500805 in words is "one billion, two hundred fifty-two million, five hundred thousand, eight hundred five".