2487565 has 16 divisors (see below), whose sum is σ = 3161088. Its totient is φ = 1875456.

The previous prime is 2487557. The next prime is 2487571. The reversal of 2487565 is 5657842.

It is a happy number.

2487565 is a nontrivial binomial coefficient, being equal to C(2231, 2).

It is a cyclic number.

It is not a de Polignac number, because 2487565 - 2³ = 2487557 is a prime.

It is a Duffinian number.

2487565 is a lucky number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 11044 + ... + 11266.

It is an arithmetic number, because the mean of its divisors is an integer number (197568).

2^2487565 is an apocalyptic number.

2487565 is the 2230-th triangular number.

2487565 is the 744-th centered nonagonal number.

It is an amenable number.

2487565 is a deficient number, since it is larger than the sum of its proper divisors (673523).

2487565 is a wasteful number, since it uses less digits than its factorization.

2487565 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 348.

The product of its digits is 67200, while the sum is 37.

The square root of 2487565 is about 1577.2016358094. The cubic root of 2487565 is about 135.4954814831.

The spelling of 2487565 in words is "two million, four hundred eighty-seven thousand, five hundred sixty-five".