8072530657 has 2 divisors, whose sum is σ = 8072530658. Its totient is φ = 8072530656.

The previous prime is 8072530649. The next prime is 8072530663. The reversal of 8072530657 is 7560352708.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 5472448576 + 2600082081 = 73976^2 + 50991^2 .

It is a cyclic number.

It is not a de Polignac number, because 8072530657 - 2³ = 8072530649 is a prime.

It is not a weakly prime, because it can be changed into another prime (8072530667) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 4036265328 + 4036265329.

It is an arithmetic number, because the mean of its divisors is an integer number (4036265329).

Almost surely, 2^8072530657 is an apocalyptic number.

It is an amenable number.

8072530657 is a deficient number, since it is larger than the sum of its proper divisors (1).

8072530657 is an equidigital number, since it uses as much as digits as its factorization.

8072530657 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 352800, while the sum is 43.

The square root of 8072530657 is about 89847.2629354951. The cubic root of 8072530657 is about 2006.0260465626.

The spelling of 8072530657 in words is "eight billion, seventy-two million, five hundred thirty thousand, six hundred fifty-seven".