505252780441 has 2 divisors, whose sum is σ = 505252780442. Its totient is φ = 505252780440.

The previous prime is 505252780429. The next prime is 505252780469. The reversal of 505252780441 is 144087252505.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 504043201600 + 1209578841 = 709960^2 + 34779^2 .

It is a cyclic number.

It is not a de Polignac number, because 505252780441 - 2¹⁹ = 505252256153 is a prime.

It is a super-2 number, since 2×505252780441² (a number of 24 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (505252780411) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 252626390220 + 252626390221.

It is an arithmetic number, because the mean of its divisors is an integer number (252626390221).

Almost surely, 2^505252780441 is an apocalyptic number.

It is an amenable number.

505252780441 is a deficient number, since it is larger than the sum of its proper divisors (1).

505252780441 is an equidigital number, since it uses as much as digits as its factorization.

505252780441 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 448000, while the sum is 43.

The spelling of 505252780441 in words is "five hundred five billion, two hundred fifty-two million, seven hundred eighty thousand, four hundred forty-one".