2520551855 has 16 divisors (see below), whose sum is σ = 3119407104. Its totient is φ = 1954018080.

The previous prime is 2520551843. The next prime is 2520551857. The reversal of 2520551855 is 5581550252.

It is not a de Polignac number, because 2520551855 - 2¹⁴ = 2520535471 is a prime.

It is a Smith number, since the sum of its digits (38) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2520551857) 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 15 ways as a sum of consecutive naturals, for example, 18851 + ... + 73460.

It is an arithmetic number, because the mean of its divisors is an integer number (194962944).

Almost surely, 2^2520551855 is an apocalyptic number.

2520551855 is a deficient number, since it is larger than the sum of its proper divisors (598855249).

2520551855 is a wasteful number, since it uses less digits than its factorization.

2520551855 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 92486.

The product of its (nonzero) digits is 100000, while the sum is 38.

The square root of 2520551855 is about 50205.0978985202. The cubic root of 2520551855 is about 1360.9177511852.

The spelling of 2520551855 in words is "two billion, five hundred twenty million, five hundred fifty-one thousand, eight hundred fifty-five".