7215552 has 42 divisors (see below), whose sum is σ = 20683728. Its totient is φ = 2404992.

The previous prime is 7215547. The next prime is 7215553. The reversal of 7215552 is 2555127.

It is a happy number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (7215553) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 5688 + ... + 6839.

Almost surely, 2^7215552 is an apocalyptic number.

7215552 is a gapful number since it is divisible by the number (72) formed by its first and last digit.

It is an amenable number.

7215552 is an abundant number, since it is smaller than the sum of its proper divisors (13468176).

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

7215552 is a wasteful number, since it uses less digits than its factorization.

7215552 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12545 (or 12532 counting only the distinct ones).

The product of its digits is 3500, while the sum is 27.

The square root of 7215552 is about 2686.1779538966. The cubic root of 7215552 is about 193.2368074105.

The spelling of 7215552 in words is "seven million, two hundred fifteen thousand, five hundred fifty-two".