2585055388 has 6 divisors (see below), whose sum is σ = 4523846936. Its totient is φ = 1292527692.

The previous prime is 2585055379. The next prime is 2585055391. The reversal of 2585055388 is 8835505852.

It is a super-2 number, since 2×2585055388² = 13365022718055661088, which contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 323131920 + ... + 323131927.

Almost surely, 2^2585055388 is an apocalyptic number.

It is an amenable number.

2585055388 is a deficient number, since it is larger than the sum of its proper divisors (1938791548).

2585055388 is a wasteful number, since it uses less digits than its factorization.

2585055388 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 646263851 (or 646263849 counting only the distinct ones).

The product of its (nonzero) digits is 1920000, while the sum is 49.

The square root of 2585055388 is about 50843.4399701672. The cubic root of 2585055388 is about 1372.4292042585.

The spelling of 2585055388 in words is "two billion, five hundred eighty-five million, fifty-five thousand, three hundred eighty-eight".