7520453813 has 2 divisors, whose sum is σ = 7520453814. Its totient is φ = 7520453812.

The previous prime is 7520453779. The next prime is 7520453827. The reversal of 7520453813 is 3183540257.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 7474985764 + 45468049 = 86458^2 + 6743^2 .

It is a cyclic number.

It is not a de Polignac number, because 7520453813 - 2¹⁰ = 7520452789 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (7520453873) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3760226906 + 3760226907.

It is an arithmetic number, because the mean of its divisors is an integer number (3760226907).

Almost surely, 2^7520453813 is an apocalyptic number.

It is an amenable number.

7520453813 is a deficient number, since it is larger than the sum of its proper divisors (1).

7520453813 is an equidigital number, since it uses as much as digits as its factorization.

7520453813 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 100800, while the sum is 38.

The square root of 7520453813 is about 86720.5501193345. The cubic root of 7520453813 is about 1959.2116270028.

The spelling of 7520453813 in words is "seven billion, five hundred twenty million, four hundred fifty-three thousand, eight hundred thirteen".