53664311 has 4 divisors (see below), whose sum is σ = 53682000. Its totient is φ = 53646624.

The previous prime is 53664269. The next prime is 53664349. The reversal of 53664311 is 11346635.

It is a happy number.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 11346635 = 5 ⋅2269327.

It is a cyclic number.

It is not a de Polignac number, because 53664311 - 2¹⁴ = 53647927 is a prime.

It is a super-3 number, since 3×53664311³ (a number of 24 digits) contains 333 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (53664011) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3011 + ... + 10788.

It is an arithmetic number, because the mean of its divisors is an integer number (13420500).

Almost surely, 2^53664311 is an apocalyptic number.

53664311 is a deficient number, since it is larger than the sum of its proper divisors (17689).

53664311 is a wasteful number, since it uses less digits than its factorization.

53664311 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 17688.

The product of its digits is 6480, while the sum is 29.

The square root of 53664311 is about 7325.5928770305. The cubic root of 53664311 is about 377.1914611222.

The spelling of 53664311 in words is "fifty-three million, six hundred sixty-four thousand, three hundred eleven".