7520452789 has 2 divisors, whose sum is σ = 7520452790. Its totient is φ = 7520452788.

The previous prime is 7520452763. The next prime is 7520452867. The reversal of 7520452789 is 9872540257.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 5567696689 + 1952756100 = 74617^2 + 44190^2 .

It is an emirp because it is prime and its reverse (9872540257) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 7520452789 - 2¹⁵ = 7520420021 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (7520452729) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3760226394 + 3760226395.

It is an arithmetic number, because the mean of its divisors is an integer number (3760226395).

Almost surely, 2^7520452789 is an apocalyptic number.

It is an amenable number.

7520452789 is a deficient number, since it is larger than the sum of its proper divisors (1).

7520452789 is an equidigital number, since it uses as much as digits as its factorization.

7520452789 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 1411200, while the sum is 49.

The square root of 7520452789 is about 86720.5442153127. The cubic root of 7520452789 is about 1959.2115380794.

The spelling of 7520452789 in words is "seven billion, five hundred twenty million, four hundred fifty-two thousand, seven hundred eighty-nine".