2565534 has 16 divisors (see below), whose sum is σ = 5256720. Its totient is φ = 834240.

The previous prime is 2565463. The next prime is 2565559. The reversal of 2565534 is 4355652.

It is a Curzon number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 4969 + ... + 5460.

It is an arithmetic number, because the mean of its divisors is an integer number (328545).

2^2565534 is an apocalyptic number.

2565534 is an abundant number, since it is smaller than the sum of its proper divisors (2691186).

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

2565534 is a wasteful number, since it uses less digits than its factorization.

2565534 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10475.

The product of its digits is 18000, while the sum is 30.

The square root of 2565534 is about 1601.7284414032. The cubic root of 2565534 is about 136.8965777787.

The spelling of 2565534 in words is "two million, five hundred sixty-five thousand, five hundred thirty-four".