53467209 has 20 divisors (see below), whose sum is σ = 80241876. Its totient is φ = 35479296.

The previous prime is 53467199. The next prime is 53467217. The reversal of 53467209 is 90276435.

It can be written as a sum of positive squares in 2 ways, for example, as 15681600 + 37785609 = 3960^2 + 6147^2 .

It is not a de Polignac number, because 53467209 - 2⁵ = 53467177 is a prime.

It is a Smith number, since the sum of its digits (36) coincides with the sum of the digits of its prime factors.

It is not an unprimeable number, because it can be changed into a prime (53467229) by changing a digit.

It is a polite number, since it can be written in 19 ways as a sum of consecutive naturals, for example, 17457 + ... + 20289.

Almost surely, 2^53467209 is an apocalyptic number.

It is an amenable number.

53467209 is a deficient number, since it is larger than the sum of its proper divisors (26774667).

53467209 is a wasteful number, since it uses less digits than its factorization.

53467209 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3078 (or 3069 counting only the distinct ones).

The product of its (nonzero) digits is 45360, while the sum is 36.

The square root of 53467209 is about 7312.1275289754. The cubic root of 53467209 is about 376.7291029539.

The spelling of 53467209 in words is "fifty-three million, four hundred sixty-seven thousand, two hundred nine".