53011 has 4 divisors (see below), whose sum is σ = 60592. Its totient is φ = 45432.

The previous prime is 53003. The next prime is 53017. The reversal of 53011 is 11035.

53011 = 84² + 85² + ... + 90².

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 11035 = 5 ⋅2207.

It is a cyclic number.

It is not a de Polignac number, because 53011 - 2³ = 53003 is a prime.

It is a super-2 number, since 2×53011² = 5620332242, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (53017) 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, 3780 + ... + 3793.

It is an arithmetic number, because the mean of its divisors is an integer number (15148).

2⁵³⁰¹¹ is an apocalyptic number.

53011 is a deficient number, since it is larger than the sum of its proper divisors (7581).

53011 is an equidigital number, since it uses as much as digits as its factorization.

53011 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7580.

The product of its (nonzero) digits is 15, while the sum is 10.

The square root of 53011 is about 230.2411778983. The cubic root of 53011 is about 37.5654560507.

Adding to 53011 its reverse (11035), we get a palindrome (64046).

The spelling of 53011 in words is "fifty-three thousand, eleven".