2656545 has 32 divisors (see below), whose sum is σ = 4561920. Its totient is φ = 1317120.

The previous prime is 2656529. The next prime is 2656547. The reversal of 2656545 is 5456562.

It is a happy number.

It is not a de Polignac number, because 2656545 - 2⁴ = 2656529 is a prime.

2656545 is a lucky number.

It is not an unprimeable number, because it can be changed into a prime (2656547) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 13387 + ... + 13583.

It is an arithmetic number, because the mean of its divisors is an integer number (142560).

2^2656545 is an apocalyptic number.

It is an amenable number.

2656545 is a deficient number, since it is larger than the sum of its proper divisors (1905375).

2656545 is a wasteful number, since it uses less digits than its factorization.

2656545 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 265.

The product of its digits is 36000, while the sum is 33.

The square root of 2656545 is about 1629.8911006567. The cubic root of 2656545 is about 138.4965831285.

The spelling of 2656545 in words is "two million, six hundred fifty-six thousand, five hundred forty-five".