2511304522545 has 48 divisors (see below), whose sum is σ = 5033647765440. Its totient is φ = 1059715310976.

The previous prime is 2511304522523. The next prime is 2511304522553. The reversal of 2511304522545 is 5452254031152.

It is not a de Polignac number, because 2511304522545 - 2⁹ = 2511304522033 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (39).

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 131403555 + ... + 131422664.

It is an arithmetic number, because the mean of its divisors is an integer number (104867661780).

Almost surely, 2^{2511304522545} is an apocalyptic number.

It is an amenable number.

2511304522545 is an abundant number, since it is smaller than the sum of its proper divisors (2522343242895).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

2511304522545 is a wasteful number, since it uses less digits than its factorization.

2511304522545 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 262826254 (or 262826247 counting only the distinct ones).

The product of its (nonzero) digits is 240000, while the sum is 39.

Adding to 2511304522545 its reverse (5452254031152), we get a palindrome (7963558553697).

The spelling of 2511304522545 in words is "two trillion, five hundred eleven billion, three hundred four million, five hundred twenty-two thousand, five hundred forty-five".