2565537 has 16 divisors (see below), whose sum is σ = 3716160. Its totient is φ = 1564992.

The previous prime is 2565463. The next prime is 2565559. The reversal of 2565537 is 7355652.

It is not a de Polignac number, because 2565537 - 2¹¹ = 2563489 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 2565498 and 2565507.

It is not an unprimeable number, because it can be changed into a prime (2515537) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 5914 + ... + 6332.

It is an arithmetic number, because the mean of its divisors is an integer number (232260).

2^2565537 is an apocalyptic number.

It is an amenable number.

2565537 is a deficient number, since it is larger than the sum of its proper divisors (1150623).

2565537 is a wasteful number, since it uses less digits than its factorization.

2565537 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 592.

The product of its digits is 31500, while the sum is 33.

The square root of 2565537 is about 1601.7293778913. The cubic root of 2565537 is about 136.8966311386.

The spelling of 2565537 in words is "two million, five hundred sixty-five thousand, five hundred thirty-seven".