2565437 has 8 divisors (see below), whose sum is σ = 3086400. Its totient is φ = 2083104.

The previous prime is 2565403. The next prime is 2565449. The reversal of 2565437 is 7345652.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 2565437 - 2¹² = 2561341 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2567437) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 9512 + ... + 9777.

It is an arithmetic number, because the mean of its divisors is an integer number (385800).

2^2565437 is an apocalyptic number.

It is an amenable number.

2565437 is a deficient number, since it is larger than the sum of its proper divisors (520963).

2565437 is a wasteful number, since it uses less digits than its factorization.

2565437 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 19315.

The product of its digits is 25200, while the sum is 32.

The square root of 2565437 is about 1601.6981613275. The cubic root of 2565437 is about 136.8948524543.

The spelling of 2565437 in words is "two million, five hundred sixty-five thousand, four hundred thirty-seven".