7520506531 has 2 divisors, whose sum is σ = 7520506532. Its totient is φ = 7520506530.

The previous prime is 7520506507. The next prime is 7520506541. The reversal of 7520506531 is 1356050257.

It is a strong prime.

It is an emirp because it is prime and its reverse (1356050257) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 7520506531 - 2¹³ = 7520498339 is a prime.

It is a super-2 number, since 2×7520506531² (a number of 21 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (7520506541) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3760253265 + 3760253266.

It is an arithmetic number, because the mean of its divisors is an integer number (3760253266).

Almost surely, 2^7520506531 is an apocalyptic number.

7520506531 is a deficient number, since it is larger than the sum of its proper divisors (1).

7520506531 is an equidigital number, since it uses as much as digits as its factorization.

7520506531 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 31500, while the sum is 34.

The square root of 7520506531 is about 86720.8540721319. The cubic root of 7520506531 is about 1959.2162049835.

Adding to 7520506531 its reverse (1356050257), we get a palindrome (8876556788).

The spelling of 7520506531 in words is "seven billion, five hundred twenty million, five hundred six thousand, five hundred thirty-one".