52421503 has 4 divisors (see below), whose sum is σ = 52687800. Its totient is φ = 52155208.

The previous prime is 52421483. The next prime is 52421521. The reversal of 52421503 is 30512425.

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 52421503 - 2⁵ = 52421471 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 (52421573) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 132853 + ... + 133246.

It is an arithmetic number, because the mean of its divisors is an integer number (13171950).

Almost surely, 2^52421503 is an apocalyptic number.

52421503 is a deficient number, since it is larger than the sum of its proper divisors (266297).

52421503 is a wasteful number, since it uses less digits than its factorization.

52421503 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 266296.

The product of its (nonzero) digits is 1200, while the sum is 22.

The square root of 52421503 is about 7240.2695391815. The cubic root of 52421503 is about 374.2569059507.

Adding to 52421503 its reverse (30512425), we get a palindrome (82933928).

The spelling of 52421503 in words is "fifty-two million, four hundred twenty-one thousand, five hundred three".