252520221003 has 4 divisors (see below), whose sum is σ = 336693628008. Its totient is φ = 168346814000.

The previous prime is 252520220951. The next prime is 252520221017. The reversal of 252520221003 is 300122025252.

252520221003 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 252520221003 - 2³² = 248225253707 is a prime.

It is not an unprimeable number, because it can be changed into a prime (252520221803) 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, 42086703498 + ... + 42086703503.

It is an arithmetic number, because the mean of its divisors is an integer number (84173407002).

Almost surely, 2^252520221003 is an apocalyptic number.

252520221003 is a deficient number, since it is larger than the sum of its proper divisors (84173407005).

252520221003 is an equidigital number, since it uses as much as digits as its factorization.

252520221003 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 84173407004.

The product of its (nonzero) digits is 2400, while the sum is 24.

Adding to 252520221003 its reverse (300122025252), we get a palindrome (552642246255).

The spelling of 252520221003 in words is "two hundred fifty-two billion, five hundred twenty million, two hundred twenty-one thousand, three".