506143355361253 has 2 divisors, whose sum is σ = 506143355361254. Its totient is φ = 506143355361252.

The previous prime is 506143355361187. The next prime is 506143355361257. The reversal of 506143355361253 is 352163553341605.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 477897287383044 + 28246067978209 = 21860862^2 + 5314703^2 .

It is a cyclic number.

It is not a de Polignac number, because 506143355361253 - 2¹⁷ = 506143355230181 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 506143355361253.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (506143355361257) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 253071677680626 + 253071677680627.

It is an arithmetic number, because the mean of its divisors is an integer number (253071677680627).

Almost surely, 2^{506143355361253} is an apocalyptic number.

It is an amenable number.

506143355361253 is a deficient number, since it is larger than the sum of its proper divisors (1).

506143355361253 is an equidigital number, since it uses as much as digits as its factorization.

506143355361253 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 14580000, while the sum is 52.

The spelling of 506143355361253 in words is "five hundred six trillion, one hundred forty-three billion, three hundred fifty-five million, three hundred sixty-one thousand, two hundred fifty-three".