2487522578 has 6 divisors (see below), whose sum is σ = 3731389671. Its totient is φ = 1243726022.

The previous prime is 2487522577. The next prime is 2487522607. The reversal of 2487522578 is 8752257842.

2487522578 is nontrivially palindromic in base 8.

It can be written as a sum of positive squares in only one way, i.e., 1243761289 + 1243761289 = 35267^2 + 35267^2 .

It is an ABA number since it can be written as A⋅B^A, here for A=2, B=35267.

It is a Duffinian number.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (2487522577) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 2 ways as a sum of consecutive naturals, for example, 52901 + ... + 88167.

Almost surely, 2^2487522578 is an apocalyptic number.

2487522578 is a deficient number, since it is larger than the sum of its proper divisors (1243867093).

2487522578 is an frugal number, since it uses more digits than its factorization.

2487522578 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 70536 (or 35269 counting only the distinct ones).

The product of its digits is 2508800, while the sum is 50.

The square root of 2487522578 is about 49875.0697042119. The cubic root of 2487522578 is about 1354.9471124903.

Multiplying 2487522578 by its sum of digits (50), we get a square (124376128900 = 352670²).

The spelling of 2487522578 in words is "two billion, four hundred eighty-seven million, five hundred twenty-two thousand, five hundred seventy-eight".