7220552 has 8 divisors (see below), whose sum is σ = 13538550. Its totient is φ = 3610272.

The previous prime is 7220531. The next prime is 7220557. The reversal of 7220552 is 2550227.

It can be written as a sum of positive squares in only one way, i.e., 5354596 + 1865956 = 2314^2 + 1366^2 .

It is a tau number, because it is divible by the number of its divisors (8).

It is not an unprimeable number, because it can be changed into a prime (7220557) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 451277 + ... + 451292.

Almost surely, 2^7220552 is an apocalyptic number.

It is an amenable number.

7220552 is a deficient number, since it is larger than the sum of its proper divisors (6317998).

7220552 is a wasteful number, since it uses less digits than its factorization.

7220552 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 902575 (or 902571 counting only the distinct ones).

The product of its (nonzero) digits is 1400, while the sum is 23.

The square root of 7220552 is about 2687.1084831097. The cubic root of 7220552 is about 193.2814314370.

Adding to 7220552 its reverse (2550227), we get a palindrome (9770779).

The spelling of 7220552 in words is "seven million, two hundred twenty thousand, five hundred fifty-two".