52221503 has 4 divisors (see below), whose sum is σ = 52281528. Its totient is φ = 52161480.

The previous prime is 52221493. The next prime is 52221509. The reversal of 52221503 is 30512225.

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 52221503 - 2⁴ = 52221487 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 (52221509) 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, 28688 + ... + 30453.

It is an arithmetic number, because the mean of its divisors is an integer number (13070382).

Almost surely, 2^52221503 is an apocalyptic number.

52221503 is a deficient number, since it is larger than the sum of its proper divisors (60025).

52221503 is an equidigital number, since it uses as much as digits as its factorization.

52221503 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 60024.

The product of its (nonzero) digits is 600, while the sum is 20.

The square root of 52221503 is about 7226.4446998507. Note that the first 3 decimals coincide. The cubic root of 52221503 is about 373.7803408589.

Adding to 52221503 its reverse (30512225), we get a palindrome (82733728).

The spelling of 52221503 in words is "fifty-two million, two hundred twenty-one thousand, five hundred three".