52500003121 has 32 divisors (see below), whose sum is σ = 57931614720. Its totient is φ = 47396044800.

The previous prime is 52500003091. The next prime is 52500003131. The reversal of 52500003121 is 12130000525.

It is a cyclic number.

It is not a de Polignac number, because 52500003121 - 2¹⁵ = 52499970353 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (19).

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (52500003131) 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 31 ways as a sum of consecutive naturals, for example, 23467815 + ... + 23470051.

It is an arithmetic number, because the mean of its divisors is an integer number (1810362960).

Almost surely, 2^52500003121 is an apocalyptic number.

It is an amenable number.

52500003121 is a deficient number, since it is larger than the sum of its proper divisors (5431611599).

52500003121 is a wasteful number, since it uses less digits than its factorization.

52500003121 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2985.

The product of its (nonzero) digits is 300, while the sum is 19.

Adding to 52500003121 its reverse (12130000525), we get a palindrome (64630003646).

The spelling of 52500003121 in words is "fifty-two billion, five hundred million, three thousand, one hundred twenty-one".