2530421345505 has 32 divisors (see below), whose sum is σ = 4170265482240. Its totient is φ = 1309443307200.

The previous prime is 2530421345471. The next prime is 2530421345539. The reversal of 2530421345505 is 5055431240352.

It is an interprime number because it is at equal distance from previous prime (2530421345471) and next prime (2530421345539).

It is not a de Polignac number, because 2530421345505 - 2¹⁰ = 2530421344481 is a prime.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 12893115 + ... + 13087904.

It is an arithmetic number, because the mean of its divisors is an integer number (130320796320).

Almost surely, 2^{2530421345505} is an apocalyptic number.

It is an amenable number.

2530421345505 is a deficient number, since it is larger than the sum of its proper divisors (1639844136735).

2530421345505 is a wasteful number, since it uses less digits than its factorization.

2530421345505 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 25981221.

The product of its (nonzero) digits is 360000, while the sum is 39.

Adding to 2530421345505 its reverse (5055431240352), we get a palindrome (7585852585857).

The spelling of 2530421345505 in words is "two trillion, five hundred thirty billion, four hundred twenty-one million, three hundred forty-five thousand, five hundred five".