53043511 has 4 divisors (see below), whose sum is σ = 54754624. Its totient is φ = 51332400.

The previous prime is 53043509. The next prime is 53043559. The reversal of 53043511 is 11534035.

It is a happy number.

53043511 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 53043511 - 2¹ = 53043509 is a prime.

It is a super-2 number, since 2×53043511² = 5627228118414242, which contains 22 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 (53041511) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 855510 + ... + 855571.

It is an arithmetic number, because the mean of its divisors is an integer number (13688656).

Almost surely, 2^53043511 is an apocalyptic number.

53043511 is a deficient number, since it is larger than the sum of its proper divisors (1711113).

53043511 is a wasteful number, since it uses less digits than its factorization.

53043511 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1711112.

The product of its (nonzero) digits is 900, while the sum is 22.

The square root of 53043511 is about 7283.0976239510. The cubic root of 53043511 is about 375.7313396007.

Adding to 53043511 its reverse (11534035), we get a palindrome (64577546).

The spelling of 53043511 in words is "fifty-three million, forty-three thousand, five hundred eleven".