2585243155 has 16 divisors (see below), whose sum is σ = 3393931104. Its totient is φ = 1874836480.

The previous prime is 2585243153. The next prime is 2585243201. The reversal of 2585243155 is 5513425852.

2585243155 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 2585243155 - 2¹ = 2585243153 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (2585243153) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 47164 + ... + 85993.

It is an arithmetic number, because the mean of its divisors is an integer number (212120694).

Almost surely, 2^2585243155 is an apocalyptic number.

2585243155 is a deficient number, since it is larger than the sum of its proper divisors (808687949).

2585243155 is a wasteful number, since it uses less digits than its factorization.

2585243155 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 133526.

The product of its digits is 240000, while the sum is 40.

The square root of 2585243155 is about 50845.2864580386. The cubic root of 2585243155 is about 1372.4624325182.

The spelling of 2585243155 in words is "two billion, five hundred eighty-five million, two hundred forty-three thousand, one hundred fifty-five".