513654547061 has 2 divisors, whose sum is σ = 513654547062. Its totient is φ = 513654547060.

The previous prime is 513654547057. The next prime is 513654547073. The reversal of 513654547061 is 160745456315.

It is a happy number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 325220418961 + 188434128100 = 570281^2 + 434090^2 .

It is a cyclic number.

It is not a de Polignac number, because 513654547061 - 2² = 513654547057 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 513654546997 and 513654547015.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (513654547961) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 256827273530 + 256827273531.

It is an arithmetic number, because the mean of its divisors is an integer number (256827273531).

Almost surely, 2^513654547061 is an apocalyptic number.

It is an amenable number.

513654547061 is a deficient number, since it is larger than the sum of its proper divisors (1).

513654547061 is an equidigital number, since it uses as much as digits as its factorization.

513654547061 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 1512000, while the sum is 47.

The spelling of 513654547061 in words is "five hundred thirteen billion, six hundred fifty-four million, five hundred forty-seven thousand, sixty-one".