2505221251223 has 4 divisors (see below), whose sum is σ = 2505235392840. Its totient is φ = 2505207109608.

The previous prime is 2505221251217. The next prime is 2505221251241. The reversal of 2505221251223 is 3221521225052.

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 2505221251223 - 2¹⁸ = 2505220989079 is a prime.

It is a super-2 number, since 2×2505221251223² (a number of 26 digits) contains 22 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 2505221251223.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2505221251823) 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, 6801665 + ... + 7160522.

It is an arithmetic number, because the mean of its divisors is an integer number (626308848210).

Almost surely, 2^{2505221251223} is an apocalyptic number.

2505221251223 is a deficient number, since it is larger than the sum of its proper divisors (14141617).

2505221251223 is a wasteful number, since it uses less digits than its factorization.

2505221251223 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 14141616.

The product of its (nonzero) digits is 24000, while the sum is 32.

Adding to 2505221251223 its reverse (3221521225052), we get a palindrome (5726742476275).

The spelling of 2505221251223 in words is "two trillion, five hundred five billion, two hundred twenty-one million, two hundred fifty-one thousand, two hundred twenty-three".