513673801 has 2 divisors, whose sum is σ = 513673802. Its totient is φ = 513673800.

The previous prime is 513673747. The next prime is 513673817. The reversal of 513673801 is 108376315.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 458987776 + 54686025 = 21424^2 + 7395^2 .

It is a cyclic number.

It is not a de Polignac number, because 513673801 - 2¹⁵ = 513641033 is a prime.

It is not a weakly prime, because it can be changed into another prime (513673861) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 256836900 + 256836901.

It is an arithmetic number, because the mean of its divisors is an integer number (256836901).

Almost surely, 2^513673801 is an apocalyptic number.

It is an amenable number.

513673801 is a deficient number, since it is larger than the sum of its proper divisors (1).

513673801 is an equidigital number, since it uses as much as digits as its factorization.

513673801 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 15120, while the sum is 34.

The square root of 513673801 is about 22664.3729452196. The cubic root of 513673801 is about 800.8708230941.

The spelling of 513673801 in words is "five hundred thirteen million, six hundred seventy-three thousand, eight hundred one".