2020725517 has 2 divisors, whose sum is σ = 2020725518. Its totient is φ = 2020725516.

The previous prime is 2020725493. The next prime is 2020725523. The reversal of 2020725517 is 7155270202.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 1986841476 + 33884041 = 44574^2 + 5821^2 .

It is a cyclic number.

It is not a de Polignac number, because 2020725517 - 2⁷ = 2020725389 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (2020725527) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1010362758 + 1010362759.

It is an arithmetic number, because the mean of its divisors is an integer number (1010362759).

Almost surely, 2^2020725517 is an apocalyptic number.

It is an amenable number.

2020725517 is a deficient number, since it is larger than the sum of its proper divisors (1).

2020725517 is an equidigital number, since it uses as much as digits as its factorization.

2020725517 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 9800, while the sum is 31.

The square root of 2020725517 is about 44952.4806545757. The cubic root of 2020725517 is about 1264.2581885004.

Adding to 2020725517 its reverse (7155270202), we get a palindrome (9175995719).

The spelling of 2020725517 in words is "two billion, twenty million, seven hundred twenty-five thousand, five hundred seventeen".