2585320 has 16 divisors (see below), whose sum is σ = 5817060. Its totient is φ = 1034112.

The previous prime is 2585293. The next prime is 2585333. The reversal of 2585320 is 235852.

It can be written as a sum of positive squares in 2 ways, for example, as 2579236 + 6084 = 1606^2 + 78^2 .

It is an Ulam number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 32277 + ... + 32356.

2^2585320 is an apocalyptic number.

2585320 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

2585320 is an abundant number, since it is smaller than the sum of its proper divisors (3231740).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

2585320 is a wasteful number, since it uses less digits than its factorization.

2585320 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 64644 (or 64640 counting only the distinct ones).

The product of its (nonzero) digits is 2400, while the sum is 25.

The square root of 2585320 is about 1607.8930312679. The cubic root of 2585320 is about 137.2476030959.

The spelling of 2585320 in words is "two million, five hundred eighty-five thousand, three hundred twenty".