2520213173 has 2 divisors, whose sum is σ = 2520213174. Its totient is φ = 2520213172.

The previous prime is 2520213119. The next prime is 2520213193. The reversal of 2520213173 is 3713120252.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 1672646404 + 847566769 = 40898^2 + 29113^2 .

It is a cyclic number.

It is not a de Polignac number, because 2520213173 - 2²⁰ = 2519164597 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (2520213193) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1260106586 + 1260106587.

It is an arithmetic number, because the mean of its divisors is an integer number (1260106587).

Almost surely, 2^2520213173 is an apocalyptic number.

It is an amenable number.

2520213173 is a deficient number, since it is larger than the sum of its proper divisors (1).

2520213173 is an equidigital number, since it uses as much as digits as its factorization.

2520213173 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 2520, while the sum is 26.

The square root of 2520213173 is about 50201.7248010464. The cubic root of 2520213173 is about 1360.8567937682.

The spelling of 2520213173 in words is "two billion, five hundred twenty million, two hundred thirteen thousand, one hundred seventy-three".