2585723011 has 4 divisors (see below), whose sum is σ = 2586650272. Its totient is φ = 2584795752.

The previous prime is 2585722991. The next prime is 2585723029. The reversal of 2585723011 is 1103275852.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 2585723011 - 2¹³ = 2585714819 is a prime.

It is a super-2 number, since 2×2585723011² = 13371926979229812242, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (2585723071) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 459435 + ... + 465028.

It is an arithmetic number, because the mean of its divisors is an integer number (646662568).

Almost surely, 2^2585723011 is an apocalyptic number.

2585723011 is a deficient number, since it is larger than the sum of its proper divisors (927261).

2585723011 is an equidigital number, since it uses as much as digits as its factorization.

2585723011 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 927260.

The product of its (nonzero) digits is 16800, while the sum is 34.

The square root of 2585723011 is about 50850.0050245819. The cubic root of 2585723011 is about 1372.5473431114.

Adding to 2585723011 its reverse (1103275852), we get a palindrome (3688998863).

The spelling of 2585723011 in words is "two billion, five hundred eighty-five million, seven hundred twenty-three thousand, eleven".