2585472538 has 64 divisors (see below), whose sum is σ = 4596756480. Its totient is φ = 1078056000.

The previous prime is 2585472497. The next prime is 2585472563. The reversal of 2585472538 is 8352745852.

It is a super-2 number, since 2×2585472538² = 13369336489504322888, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 2585472491 and 2585472500.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 1983595 + ... + 1984897.

It is an arithmetic number, because the mean of its divisors is an integer number (71824320).

Almost surely, 2^2585472538 is an apocalyptic number.

2585472538 is a deficient number, since it is larger than the sum of its proper divisors (2011283942).

2585472538 is a wasteful number, since it uses less digits than its factorization.

2585472538 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1483.

The product of its digits is 2688000, while the sum is 49.

The square root of 2585472538 is about 50847.5421038225. The cubic root of 2585472538 is about 1372.5030231861.

The spelling of 2585472538 in words is "two billion, five hundred eighty-five million, four hundred seventy-two thousand, five hundred thirty-eight".