513345425093 has 2 divisors, whose sum is σ = 513345425094. Its totient is φ = 513345425092.

The previous prime is 513345425059. The next prime is 513345425191. The reversal of 513345425093 is 390524543315.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 486488115169 + 26857309924 = 697487^2 + 163882^2 .

It is a cyclic number.

It is not a de Polignac number, because 513345425093 - 2¹⁰ = 513345424069 is a prime.

It is a Sophie Germain prime.

It is a Curzon number.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (513345425003) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 256672712546 + 256672712547.

It is an arithmetic number, because the mean of its divisors is an integer number (256672712547).

Almost surely, 2^513345425093 is an apocalyptic number.

It is an amenable number.

513345425093 is a deficient number, since it is larger than the sum of its proper divisors (1).

513345425093 is an equidigital number, since it uses as much as digits as its factorization.

513345425093 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 972000, while the sum is 44.

The spelling of 513345425093 in words is "five hundred thirteen billion, three hundred forty-five million, four hundred twenty-five thousand, ninety-three".