515373013 has 2 divisors, whose sum is σ = 515373014. Its totient is φ = 515373012.

The previous prime is 515372989. The next prime is 515373031. The reversal of 515373013 is 310373515.

Together with next prime (515373031) it forms an Ormiston pair, because they use the same digits, order apart.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 506385009 + 8988004 = 22503^2 + 2998^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-515373013 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (515373073) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 257686506 + 257686507.

It is an arithmetic number, because the mean of its divisors is an integer number (257686507).

Almost surely, 2^515373013 is an apocalyptic number.

It is an amenable number.

515373013 is a deficient number, since it is larger than the sum of its proper divisors (1).

515373013 is an equidigital number, since it uses as much as digits as its factorization.

515373013 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 4725, while the sum is 28.

The square root of 515373013 is about 22701.8284065403. The cubic root of 515373013 is about 801.7529338275.

The spelling of 515373013 in words is "five hundred fifteen million, three hundred seventy-three thousand, thirteen".