513552447277 has 2 divisors, whose sum is σ = 513552447278. Its totient is φ = 513552447276.

The previous prime is 513552447251. The next prime is 513552447283. The reversal of 513552447277 is 772744255315.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 329876773801 + 183675673476 = 574349^2 + 428574^2 .

It is a cyclic number.

It is not a de Polignac number, because 513552447277 - 2²³ = 513544058669 is a prime.

It is a super-2 number, since 2×513552447277² (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 (513552447377) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 256776223638 + 256776223639.

It is an arithmetic number, because the mean of its divisors is an integer number (256776223639).

Almost surely, 2^513552447277 is an apocalyptic number.

It is an amenable number.

513552447277 is a deficient number, since it is larger than the sum of its proper divisors (1).

513552447277 is an equidigital number, since it uses as much as digits as its factorization.

513552447277 is an evil number, because the sum of its binary digits is even.

The product of its digits is 8232000, while the sum is 52.

The spelling of 513552447277 in words is "five hundred thirteen billion, five hundred fifty-two million, four hundred forty-seven thousand, two hundred seventy-seven".