2520540571 has 4 divisors (see below), whose sum is σ = 2520860112. Its totient is φ = 2520221032.

The previous prime is 2520540553. The next prime is 2520540577. The reversal of 2520540571 is 1750450252.

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 2520540571 - 2⁷ = 2520540443 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (2520540577) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 147631 + ... + 163816.

It is an arithmetic number, because the mean of its divisors is an integer number (630215028).

Almost surely, 2^2520540571 is an apocalyptic number.

2520540571 is a deficient number, since it is larger than the sum of its proper divisors (319541).

2520540571 is an equidigital number, since it uses as much as digits as its factorization.

2520540571 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 319540.

The product of its (nonzero) digits is 14000, while the sum is 31.

The square root of 2520540571 is about 50204.9855193685. The cubic root of 2520540571 is about 1360.9157203312.

The spelling of 2520540571 in words is "two billion, five hundred twenty million, five hundred forty thousand, five hundred seventy-one".