505028002669 has 2 divisors, whose sum is σ = 505028002670. Its totient is φ = 505028002668.

The previous prime is 505028002657. The next prime is 505028002757. The reversal of 505028002669 is 966200820505.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 262796693769 + 242231308900 = 512637^2 + 492170^2 .

It is a cyclic number.

It is not a de Polignac number, because 505028002669 - 2¹¹ = 505028000621 is a prime.

It is a super-2 number, since 2×505028002669² (a number of 24 digits) contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (505028072669) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 252514001334 + 252514001335.

It is an arithmetic number, because the mean of its divisors is an integer number (252514001335).

Almost surely, 2^505028002669 is an apocalyptic number.

It is an amenable number.

505028002669 is a deficient number, since it is larger than the sum of its proper divisors (1).

505028002669 is an equidigital number, since it uses as much as digits as its factorization.

505028002669 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 259200, while the sum is 43.

The spelling of 505028002669 in words is "five hundred five billion, twenty-eight million, two thousand, six hundred sixty-nine".