2522515543 has 4 divisors (see below), whose sum is σ = 2528341648. Its totient is φ = 2516689440.

The previous prime is 2522515537. The next prime is 2522515561. The reversal of 2522515543 is 3455152252.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-2522515543 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 2522515499 and 2522515508.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2522515643) 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, 2912403 + ... + 2913268.

It is an arithmetic number, because the mean of its divisors is an integer number (632085412).

Almost surely, 2^2522515543 is an apocalyptic number.

2522515543 is a deficient number, since it is larger than the sum of its proper divisors (5826105).

2522515543 is an equidigital number, since it uses as much as digits as its factorization.

2522515543 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5826104.

The product of its digits is 60000, while the sum is 34.

The square root of 2522515543 is about 50224.6507504034. The cubic root of 2522515543 is about 1361.2710764767.

Adding to 2522515543 its reverse (3455152252), we get a palindrome (5977667795).

The spelling of 2522515543 in words is "two billion, five hundred twenty-two million, five hundred fifteen thousand, five hundred forty-three".