513732425461 has 2 divisors, whose sum is σ = 513732425462. Its totient is φ = 513732425460.

The previous prime is 513732425441. The next prime is 513732425593. The reversal of 513732425461 is 164524237315.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 485181902500 + 28550522961 = 696550^2 + 168969^2 .

It is a cyclic number.

It is not a de Polignac number, because 513732425461 - 2⁷ = 513732425333 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (513732425411) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 256866212730 + 256866212731.

It is an arithmetic number, because the mean of its divisors is an integer number (256866212731).

Almost surely, 2^513732425461 is an apocalyptic number.

It is an amenable number.

513732425461 is a deficient number, since it is larger than the sum of its proper divisors (1).

513732425461 is an equidigital number, since it uses as much as digits as its factorization.

513732425461 is an evil number, because the sum of its binary digits is even.

The product of its digits is 604800, while the sum is 43.

The spelling of 513732425461 in words is "five hundred thirteen billion, seven hundred thirty-two million, four hundred twenty-five thousand, four hundred sixty-one".