505212641245 has 16 divisors (see below), whose sum is σ = 652983292080. Its totient is φ = 373026898944.

The previous prime is 505212641243. The next prime is 505212641273. The reversal of 505212641245 is 542146212505.

It can be written as a sum of positive squares in 8 ways, for example, as 72263117124 + 432949524121 = 268818^2 + 657989^2 .

It is a cyclic number.

It is not a de Polignac number, because 505212641245 - 2¹ = 505212641243 is a prime.

It is a super-3 number, since 3×505212641245³ (a number of 36 digits) contains 333 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (505212641243) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 91990 + ... + 1009399.

It is an arithmetic number, because the mean of its divisors is an integer number (40811455755).

Almost surely, 2^505212641245 is an apocalyptic number.

It is an amenable number.

505212641245 is a deficient number, since it is larger than the sum of its proper divisors (147770650835).

505212641245 is a wasteful number, since it uses less digits than its factorization.

505212641245 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1108464.

The product of its (nonzero) digits is 96000, while the sum is 37.

The spelling of 505212641245 in words is "five hundred five billion, two hundred twelve million, six hundred forty-one thousand, two hundred forty-five".