7216554 has 16 divisors (see below), whose sum is σ = 14823648. Its totient is φ = 2340432.

The previous prime is 7216543. The next prime is 7216567. The reversal of 7216554 is 4556127.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 16032 + ... + 16475.

It is an arithmetic number, because the mean of its divisors is an integer number (926478).

Almost surely, 2^7216554 is an apocalyptic number.

7216554 is a gapful number since it is divisible by the number (74) formed by its first and last digit.

7216554 is an abundant number, since it is smaller than the sum of its proper divisors (7607094).

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

7216554 is a wasteful number, since it uses less digits than its factorization.

7216554 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 32549.

The product of its digits is 8400, while the sum is 30.

The square root of 7216554 is about 2686.3644577756. The cubic root of 7216554 is about 193.2457517167.

The spelling of 7216554 in words is "seven million, two hundred sixteen thousand, five hundred fifty-four".