7211515052 has 48 divisors (see below), whose sum is σ = 14678841408. Its totient is φ = 3036303360.

The previous prime is 7211515049. The next prime is 7211515063. The reversal of 7211515052 is 2505151127.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 362402 + ... + 381782.

It is an arithmetic number, because the mean of its divisors is an integer number (305809196).

Almost surely, 2^7211515052 is an apocalyptic number.

It is an amenable number.

7211515052 is an abundant number, since it is smaller than the sum of its proper divisors (7467326356).

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

7211515052 is a wasteful number, since it uses less digits than its factorization.

7211515052 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 19626 (or 19624 counting only the distinct ones).

The product of its (nonzero) digits is 3500, while the sum is 29.

The square root of 7211515052 is about 84920.6397291024. The cubic root of 7211515052 is about 1932.0076339203.

Adding to 7211515052 its reverse (2505151127), we get a palindrome (9716666179).

The spelling of 7211515052 in words is "seven billion, two hundred eleven million, five hundred fifteen thousand, fifty-two".