2520540551 has 4 divisors (see below), whose sum is σ = 2653200600. Its totient is φ = 2387880504.

The previous prime is 2520540521. The next prime is 2520540553. The reversal of 2520540551 is 1550450252.

2520540551 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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-2520540551 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2520540553) 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, 66329996 + ... + 66330033.

It is an arithmetic number, because the mean of its divisors is an integer number (663300150).

Almost surely, 2^2520540551 is an apocalyptic number.

2520540551 is a deficient number, since it is larger than the sum of its proper divisors (132660049).

2520540551 is a wasteful number, since it uses less digits than its factorization.

2520540551 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 132660048.

The product of its (nonzero) digits is 10000, while the sum is 29.

The square root of 2520540551 is about 50204.9853201851. The cubic root of 2520540551 is about 1360.9157167317.

It can be divided in two parts, 25205 and 40551, that added together give a palindrome (65756).

The spelling of 2520540551 in words is "two billion, five hundred twenty million, five hundred forty thousand, five hundred fifty-one".