505252780505 has 8 divisors (see below), whose sum is σ = 661421821824. Its totient is φ = 367456567600.

The previous prime is 505252780499. The next prime is 505252780537. The reversal of 505252780505 is 505087252505.

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

It is not a de Polignac number, because 505252780505 - 2⁶ = 505252780441 is a prime.

It is a Duffinian 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, 4593207041 + ... + 4593207150.

It is an arithmetic number, because the mean of its divisors is an integer number (82677727728).

Almost surely, 2^505252780505 is an apocalyptic number.

505252780505 is a gapful number since it is divisible by the number (55) formed by its first and last digit.

It is an amenable number.

505252780505 is a deficient number, since it is larger than the sum of its proper divisors (156169041319).

505252780505 is a wasteful number, since it uses less digits than its factorization.

505252780505 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9186414207.

The product of its (nonzero) digits is 700000, while the sum is 44.

The spelling of 505252780505 in words is "five hundred five billion, two hundred fifty-two million, seven hundred eighty thousand, five hundred five".