2505521021201 has 8 divisors (see below), whose sum is σ = 2733988908864. Its totient is φ = 2277168675120.

The previous prime is 2505521021173. The next prime is 2505521021287. The reversal of 2505521021201 is 1021201255052.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-2505521021201 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (2505521027201) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 28840046 + ... + 28926791.

It is an arithmetic number, because the mean of its divisors is an integer number (341748613608).

Almost surely, 2^{2505521021201} is an apocalyptic number.

It is an amenable number.

2505521021201 is a deficient number, since it is larger than the sum of its proper divisors (228467887663).

2505521021201 is a wasteful number, since it uses less digits than its factorization.

2505521021201 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 57770791.

The product of its (nonzero) digits is 2000, while the sum is 26.

Adding to 2505521021201 its reverse (1021201255052), we get a palindrome (3526722276253).

The spelling of 2505521021201 in words is "two trillion, five hundred five billion, five hundred twenty-one million, twenty-one thousand, two hundred one".