53209611 has 24 divisors (see below), whose sum is σ = 94596320. Its totient is φ = 28066176.

The previous prime is 53209573. The next prime is 53209613. The reversal of 53209611 is 11690235.

It is not a de Polignac number, because 53209611 - 2¹³ = 53201419 is a prime.

It is not an unprimeable number, because it can be changed into a prime (53209613) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 31666 + ... + 33303.

Almost surely, 2^53209611 is an apocalyptic number.

53209611 is a deficient number, since it is larger than the sum of its proper divisors (41386709).

53209611 is a wasteful number, since it uses less digits than its factorization.

53209611 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 64995 (or 64992 counting only the distinct ones).

The product of its (nonzero) digits is 1620, while the sum is 27.

The square root of 53209611 is about 7294.4918260287. The cubic root of 53209611 is about 376.1231182563.

Adding to 53209611 its reverse (11690235), we get a palindrome (64899846).

The spelling of 53209611 in words is "fifty-three million, two hundred nine thousand, six hundred eleven".