7532721225 has 48 divisors (see below), whose sum is σ = 14044507840. Its totient is φ = 3957465600.

The previous prime is 7532721173. The next prime is 7532721227. The reversal of 7532721225 is 5221272357.

It is not a de Polignac number, because 7532721225 - 2¹⁰ = 7532720201 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 7532721225.

It is not an unprimeable number, because it can be changed into a prime (7532721227) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 38056 + ... + 128505.

Almost surely, 2^7532721225 is an apocalyptic number.

7532721225 is a gapful number since it is divisible by the number (75) formed by its first and last digit.

It is an amenable number.

7532721225 is a deficient number, since it is larger than the sum of its proper divisors (6511786615).

7532721225 is a wasteful number, since it uses less digits than its factorization.

7532721225 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 166647 (or 166636 counting only the distinct ones).

The product of its digits is 58800, while the sum is 36.

The square root of 7532721225 is about 86791.2508551409. The cubic root of 7532721225 is about 1960.2763411041.

The spelling of 7532721225 in words is "seven billion, five hundred thirty-two million, seven hundred twenty-one thousand, two hundred twenty-five".