7000000520 has 128 divisors (see below), whose sum is σ = 17065641600. Its totient is φ = 2575411200.

The previous prime is 7000000519. The next prime is 7000000537. The reversal of 7000000520 is 250000007.

It is a junction number, because it is equal to n+sod(n) for n = 7000000495 and 7000000504.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 8630915 + ... + 8631725.

It is an arithmetic number, because the mean of its divisors is an integer number (133325325).

Almost surely, 2^7000000520 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 7000000520, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (8532820800).

7000000520 is an abundant number, since it is smaller than the sum of its proper divisors (10065641080).

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

7000000520 is a wasteful number, since it uses less digits than its factorization.

7000000520 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1159 (or 1155 counting only the distinct ones).

The product of its (nonzero) digits is 70, while the sum is 14.

The square root of 7000000520 is about 83666.0057610019. The cubic root of 7000000520 is about 1912.9312301402.

Adding to 7000000520 its reverse (250000007), we get a palindrome (7250000527).

The spelling of 7000000520 in words is "seven billion, five hundred twenty", and thus it is an aban number.