52511503 has 4 divisors (see below), whose sum is σ = 57285288. Its totient is φ = 47737720.

The previous prime is 52511491. The next prime is 52511509. The reversal of 52511503 is 30511525.

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 52511503 - 2¹⁷ = 52380431 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 (52511509) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2386876 + ... + 2386897.

It is an arithmetic number, because the mean of its divisors is an integer number (14321322).

Almost surely, 2^52511503 is an apocalyptic number.

52511503 is a deficient number, since it is larger than the sum of its proper divisors (4773785).

52511503 is a wasteful number, since it uses less digits than its factorization.

52511503 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4773784.

The product of its (nonzero) digits is 750, while the sum is 22.

The square root of 52511503 is about 7246.4821120320. The cubic root of 52511503 is about 374.4709648239.

Adding to 52511503 its sum of digits (22), we get a palindrome (52511525).

The spelling of 52511503 in words is "fifty-two million, five hundred eleven thousand, five hundred three".