513080081 has 2 divisors, whose sum is σ = 513080082. Its totient is φ = 513080080.

The previous prime is 513080069. The next prime is 513080137. The reversal of 513080081 is 180080315.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 316519681 + 196560400 = 17791^2 + 14020^2 .

It is a cyclic number.

It is not a de Polignac number, because 513080081 - 2¹⁴ = 513063697 is a prime.

It is a super-2 number, since 2×513080081² = 526502339037933122, which contains 22 as substring.

It is a Chen prime.

It is a self number, because there is not a number n which added to its sum of digits gives 513080081.

It is not a weakly prime, because it can be changed into another prime (513080011) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 256540040 + 256540041.

It is an arithmetic number, because the mean of its divisors is an integer number (256540041).

Almost surely, 2^513080081 is an apocalyptic number.

It is an amenable number.

513080081 is a deficient number, since it is larger than the sum of its proper divisors (1).

513080081 is an equidigital number, since it uses as much as digits as its factorization.

513080081 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 960, while the sum is 26.

The square root of 513080081 is about 22651.2710680880. The cubic root of 513080081 is about 800.5621470833.

The spelling of 513080081 in words is "five hundred thirteen million, eighty thousand, eighty-one".