7560312521 has 4 divisors (see below), whose sum is σ = 7560487044. Its totient is φ = 7560138000.

The previous prime is 7560312467. The next prime is 7560312523. The reversal of 7560312521 is 1252130657.

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length, and also an emirpimes, since its reverse is a distinct semiprime: 1252130657 = 1319 ⋅949303.

It can be written as a sum of positive squares in 2 ways, for example, as 1392409225 + 6167903296 = 37315^2 + 78536^2 .

It is a cyclic number.

It is not a de Polignac number, because 7560312521 - 2³⁰ = 6486570697 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (7560312523) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 32591 + ... + 127211.

It is an arithmetic number, because the mean of its divisors is an integer number (1890121761).

Almost surely, 2^7560312521 is an apocalyptic number.

It is an amenable number.

7560312521 is a deficient number, since it is larger than the sum of its proper divisors (174523).

7560312521 is an equidigital number, since it uses as much as digits as its factorization.

7560312521 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 174522.

The product of its (nonzero) digits is 12600, while the sum is 32.

The square root of 7560312521 is about 86950.0576250528. The cubic root of 7560312521 is about 1962.6668301033. Note that the first 3 decimals are identical.

The spelling of 7560312521 in words is "seven billion, five hundred sixty million, three hundred twelve thousand, five hundred twenty-one".