7213852520 has 160 divisors (see below), whose sum is σ = 19554117120. Its totient is φ = 2392548480.

The previous prime is 7213852487. The next prime is 7213852523. The reversal of 7213852520 is 252583127.

It is a Harshad number since it is a multiple of its sum of digits (35).

It is not an unprimeable number, because it can be changed into a prime (7213852523) by changing a digit.

It is a polite number, since it can be written in 39 ways as a sum of consecutive naturals, for example, 2976029 + ... + 2978451.

It is an arithmetic number, because the mean of its divisors is an integer number (122213232).

Almost surely, 2^7213852520 is an apocalyptic number.

7213852520 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 7213852520, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (9777058560).

7213852520 is an abundant number, since it is smaller than the sum of its proper divisors (12340264600).

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

7213852520 is a wasteful number, since it uses less digits than its factorization.

7213852520 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2493 (or 2468 counting only the distinct ones).

The product of its (nonzero) digits is 33600, while the sum is 35.

The square root of 7213852520 is about 84934.4012753372. The cubic root of 7213852520 is about 1932.2163518827.

The spelling of 7213852520 in words is "seven billion, two hundred thirteen million, eight hundred fifty-two thousand, five hundred twenty".