7271506530 has 96 divisors (see below), whose sum is σ = 20046873600. Its totient is φ = 1823544576.

The previous prime is 7271506483. The next prime is 7271506531. The reversal of 7271506530 is 356051727.

7271506530 is a `hidden beast` number, since 7 + 2 + 71 + 50 + 6 + 530 = 666.

It is not an unprimeable number, because it can be changed into a prime (7271506531) 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, 218751 + ... + 249789.

It is an arithmetic number, because the mean of its divisors is an integer number (208821600).

Almost surely, 2^7271506530 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 7271506530, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (10023436800).

7271506530 is an abundant number, since it is smaller than the sum of its proper divisors (12775367070).

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

7271506530 is a wasteful number, since it uses less digits than its factorization.

7271506530 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 31208 (or 31205 counting only the distinct ones).

The product of its (nonzero) digits is 44100, while the sum is 36.

The square root of 7271506530 is about 85273.1290032212. The cubic root of 7271506530 is about 1937.3502040555.

The spelling of 7271506530 in words is "seven billion, two hundred seventy-one million, five hundred six thousand, five hundred thirty".