2520605541 has 4 divisors (see below), whose sum is σ = 3360807392. Its totient is φ = 1680403692.

The previous prime is 2520605497. The next prime is 2520605561. The reversal of 2520605541 is 1455060252.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is not a de Polignac number, because 2520605541 - 2¹¹ = 2520603493 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 2520605499 and 2520605508.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2520605561) 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, 420100921 + ... + 420100926.

It is an arithmetic number, because the mean of its divisors is an integer number (840201848).

Almost surely, 2^2520605541 is an apocalyptic number.

It is an amenable number.

2520605541 is a deficient number, since it is larger than the sum of its proper divisors (840201851).

2520605541 is an equidigital number, since it uses as much as digits as its factorization.

2520605541 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 840201850.

The product of its (nonzero) digits is 12000, while the sum is 30.

The square root of 2520605541 is about 50205.6325624924. The cubic root of 2520605541 is about 1360.9274133169.

Adding to 2520605541 its reverse (1455060252), we get a palindrome (3975665793).

The spelling of 2520605541 in words is "two billion, five hundred twenty million, six hundred five thousand, five hundred forty-one".