53042511 has 4 divisors (see below), whose sum is σ = 70723352. Its totient is φ = 35361672.

The previous prime is 53042503. The next prime is 53042513. The reversal of 53042511 is 11524035.

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

It is not a de Polignac number, because 53042511 - 2³ = 53042503 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (53042513) 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, 8840416 + ... + 8840421.

It is an arithmetic number, because the mean of its divisors is an integer number (17680838).

Almost surely, 2^53042511 is an apocalyptic number.

53042511 is a deficient number, since it is larger than the sum of its proper divisors (17680841).

53042511 is a wasteful number, since it uses less digits than its factorization.

53042511 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 17680840.

The product of its (nonzero) digits is 600, while the sum is 21.

The square root of 53042511 is about 7283.0289715200. The cubic root of 53042511 is about 375.7289784340.

Adding to 53042511 its reverse (11524035), we get a palindrome (64566546).

The spelling of 53042511 in words is "fifty-three million, forty-two thousand, five hundred eleven".