67216552 has 32 divisors (see below), whose sum is σ = 137652480. Its totient is φ = 30582720.

The previous prime is 67216537. The next prime is 67216573. The reversal of 67216552 is 25561276.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2833 + ... + 11935.

It is an arithmetic number, because the mean of its divisors is an integer number (4301640).

Almost surely, 2^67216552 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 67216552, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (68826240).

67216552 is an abundant number, since it is smaller than the sum of its proper divisors (70435928).

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

67216552 is a wasteful number, since it uses less digits than its factorization.

67216552 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9193 (or 9189 counting only the distinct ones).

The product of its digits is 25200, while the sum is 34.

The square root of 67216552 is about 8198.5701192342. The cubic root of 67216552 is about 406.5919197328.

The spelling of 67216552 in words is "sixty-seven million, two hundred sixteen thousand, five hundred fifty-two".