7530252520 has 128 divisors (see below), whose sum is σ = 21085920000. Its totient is φ = 2361526272.

The previous prime is 7530252511. The next prime is 7530252523. The reversal of 7530252520 is 252520357.

It is not an unprimeable number, because it can be changed into a prime (7530252523) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 129876 + ... + 178684.

It is an arithmetic number, because the mean of its divisors is an integer number (164733750).

Almost surely, 2^7530252520 is an apocalyptic number.

7530252520 is a gapful number since it is divisible by the number (70) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 7530252520, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (10542960000).

7530252520 is an abundant number, since it is smaller than the sum of its proper divisors (13555667480).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

7530252520 is a wasteful number, since it uses less digits than its factorization.

7530252520 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 48875 (or 48871 counting only the distinct ones).

The product of its (nonzero) digits is 21000, while the sum is 31.

The square root of 7530252520 is about 86777.0276052366. The cubic root of 7530252520 is about 1960.0621700396.

Adding to 7530252520 its reverse (252520357), we get a palindrome (7782772877).

The spelling of 7530252520 in words is "seven billion, five hundred thirty million, two hundred fifty-two thousand, five hundred twenty".