2585537 has 4 divisors (see below), whose sum is σ = 2590596. Its totient is φ = 2580480.

The previous prime is 2585521. The next prime is 2585549. The reversal of 2585537 is 7355852.

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

It can be written as a sum of positive squares in 2 ways, for example, as 2383936 + 201601 = 1544^2 + 449^2 .

It is a cyclic number.

It is not a de Polignac number, because 2585537 - 2⁴ = 2585521 is a prime.

It is a d-powerful number, because it can be written as 2⁴ + 5⁴ + 8⁷ + 5⁷ + 5⁸ + 3⁷ + 7⁵ .

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 2585497 and 2585506.

It is not an unprimeable number, because it can be changed into a prime (2585507) 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, 1664 + ... + 2817.

It is an arithmetic number, because the mean of its divisors is an integer number (647649).

2^2585537 is an apocalyptic number.

It is an amenable number.

2585537 is a deficient number, since it is larger than the sum of its proper divisors (5059).

2585537 is an equidigital number, since it uses as much as digits as its factorization.

2585537 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5058.

The product of its digits is 42000, while the sum is 35.

The square root of 2585537 is about 1607.9605094653. The cubic root of 2585537 is about 137.2514429683.

The spelling of 2585537 in words is "two million, five hundred eighty-five thousand, five hundred thirty-seven".