7522130537 has 4 divisors (see below), whose sum is σ = 7532740740. Its totient is φ = 7511520336.

The previous prime is 7522130531. The next prime is 7522130587. The reversal of 7522130537 is 7350312257.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 5052935056 + 2469195481 = 71084^2 + 49691^2 .

It is a cyclic number.

It is not a de Polignac number, because 7522130537 - 2¹² = 7522126441 is a prime.

It is a super-3 number, since 3×7522130537³ (a number of 31 digits) contains 333 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 7522130497 and 7522130506.

It is not an unprimeable number, because it can be changed into a prime (7522130531) 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, 5304038 + ... + 5305455.

It is an arithmetic number, because the mean of its divisors is an integer number (1883185185).

Almost surely, 2^7522130537 is an apocalyptic number.

It is an amenable number.

7522130537 is a deficient number, since it is larger than the sum of its proper divisors (10610203).

7522130537 is a wasteful number, since it uses less digits than its factorization.

7522130537 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10610202.

The product of its (nonzero) digits is 44100, while the sum is 35.

The square root of 7522130537 is about 86730.2169777062. The cubic root of 7522130537 is about 1959.3572216317.

The spelling of 7522130537 in words is "seven billion, five hundred twenty-two million, one hundred thirty thousand, five hundred thirty-seven".