7215572 has 48 divisors (see below), whose sum is σ = 15937152. Its totient is φ = 2782080.

The previous prime is 7215557. The next prime is 7215601. The reversal of 7215572 is 2755127.

It is a congruent number.

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, 15422 + ... + 15882.

It is an arithmetic number, because the mean of its divisors is an integer number (332024).

Almost surely, 2^7215572 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 7215572, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (7968576).

7215572 is an abundant number, since it is smaller than the sum of its proper divisors (8721580).

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

7215572 is a wasteful number, since it uses less digits than its factorization.

7215572 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 528 (or 526 counting only the distinct ones).

The product of its digits is 4900, while the sum is 29.

The square root of 7215572 is about 2686.1816766555. The cubic root of 7215572 is about 193.2369859477.

It can be divided in two parts, 72155 and 72, that added together give a palindrome (72227).

The spelling of 7215572 in words is "seven million, two hundred fifteen thousand, five hundred seventy-two".