505722127297 has 8 divisors (see below), whose sum is σ = 515634164712. Its totient is φ = 495862396800.

The previous prime is 505722127291. The next prime is 505722127321. The reversal of 505722127297 is 792721227505.

It can be written as a sum of positive squares in 4 ways, for example, as 8582910736 + 497139216561 = 92644^2 + 705081^2 .

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

It is a cyclic number.

It is not a de Polignac number, because 505722127297 - 2²⁷ = 505587909569 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 505722127297.

It is not an unprimeable number, because it can be changed into a prime (505722127291) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 13057204 + ... + 13095877.

It is an arithmetic number, because the mean of its divisors is an integer number (64454270589).

Almost surely, 2^505722127297 is an apocalyptic number.

It is an amenable number.

505722127297 is a deficient number, since it is larger than the sum of its proper divisors (9912037415).

505722127297 is a wasteful number, since it uses less digits than its factorization.

505722127297 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 26153459.

The product of its (nonzero) digits is 1234800, while the sum is 49.

The spelling of 505722127297 in words is "five hundred five billion, seven hundred twenty-two million, one hundred twenty-seven thousand, two hundred ninety-seven".