505880765 has 8 divisors (see below), whose sum is σ = 653753688. Its totient is φ = 373573440.

The previous prime is 505880759. The next prime is 505880779. The reversal of 505880765 is 567088505.

It can be written as a sum of positive squares in 4 ways, for example, as 49716601 + 456164164 = 7051^2 + 21358^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 505880765 - 2¹² = 505876669 is a prime.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 3891326 + ... + 3891455.

It is an arithmetic number, because the mean of its divisors is an integer number (81719211).

Almost surely, 2^505880765 is an apocalyptic number.

It is an amenable number.

505880765 is a deficient number, since it is larger than the sum of its proper divisors (147872923).

505880765 is a wasteful number, since it uses less digits than its factorization.

505880765 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7782799.

The product of its (nonzero) digits is 336000, while the sum is 44.

The square root of 505880765 is about 22491.7932811059. The cubic root of 505880765 is about 796.8001164338.

The spelling of 505880765 in words is "five hundred five million, eight hundred eighty thousand, seven hundred sixty-five".