67216253 has 8 divisors (see below), whose sum is σ = 72850008. Its totient is φ = 61648704.

The previous prime is 67216213. The next prime is 67216273. The reversal of 67216253 is 35261276.

It can be written as a sum of positive squares in 4 ways, for example, as 2365444 + 64850809 = 1538^2 + 8053^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 67216253 - 2¹⁶ = 67150717 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (67216213) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 14426 + ... + 18507.

It is an arithmetic number, because the mean of its divisors is an integer number (9106251).

Almost surely, 2^67216253 is an apocalyptic number.

It is an amenable number.

67216253 is a deficient number, since it is larger than the sum of its proper divisors (5633755).

67216253 is a wasteful number, since it uses less digits than its factorization.

67216253 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 33103.

The product of its digits is 15120, while the sum is 32.

The square root of 67216253 is about 8198.5518843269. The cubic root of 67216253 is about 406.5913168497.

The spelling of 67216253 in words is "sixty-seven million, two hundred sixteen thousand, two hundred fifty-three".