2520501311245 has 4 divisors (see below), whose sum is σ = 3024601573500. Its totient is φ = 2016401048992.

The previous prime is 2520501311243. The next prime is 2520501311287. The reversal of 2520501311245 is 5421131050252.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 549546446596 + 1970954864649 = 741314^2 + 1403907^2 .

It is a cyclic number.

It is not a de Polignac number, because 2520501311245 - 2¹ = 2520501311243 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2520501311243) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 252050131120 + ... + 252050131129.

It is an arithmetic number, because the mean of its divisors is an integer number (756150393375).

Almost surely, 2^{2520501311245} is an apocalyptic number.

It is an amenable number.

2520501311245 is a deficient number, since it is larger than the sum of its proper divisors (504100262255).

2520501311245 is an equidigital number, since it uses as much as digits as its factorization.

2520501311245 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 504100262254.

The product of its (nonzero) digits is 12000, while the sum is 31.

Adding to 2520501311245 its reverse (5421131050252), we get a palindrome (7941632361497).

The spelling of 2520501311245 in words is "two trillion, five hundred twenty billion, five hundred one million, three hundred eleven thousand, two hundred forty-five".