7520305061 has 2 divisors, whose sum is σ = 7520305062. Its totient is φ = 7520305060.

The previous prime is 7520305049. The next prime is 7520305063. The reversal of 7520305061 is 1605030257.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 7431474436 + 88830625 = 86206^2 + 9425^2 .

It is a cyclic number.

It is not a de Polignac number, because 7520305061 - 2⁶ = 7520304997 is a prime.

Together with 7520305063, it forms a pair of twin primes.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (7520305063) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3760152530 + 3760152531.

It is an arithmetic number, because the mean of its divisors is an integer number (3760152531).

Almost surely, 2^7520305061 is an apocalyptic number.

It is an amenable number.

7520305061 is a deficient number, since it is larger than the sum of its proper divisors (1).

7520305061 is an equidigital number, since it uses as much as digits as its factorization.

7520305061 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 6300, while the sum is 29.

The square root of 7520305061 is about 86719.6924637075. The cubic root of 7520305061 is about 1959.1987094060.

The spelling of 7520305061 in words is "seven billion, five hundred twenty million, three hundred five thousand, sixty-one".