2653566 has 16 divisors (see below), whose sum is σ = 5451024. Its totient is φ = 860544.

The previous prime is 2653549. The next prime is 2653571. The reversal of 2653566 is 6653562.

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, 5755 + ... + 6198.

It is an arithmetic number, because the mean of its divisors is an integer number (340689).

2^2653566 is an apocalyptic number.

2653566 is an abundant number, since it is smaller than the sum of its proper divisors (2797458).

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

2653566 is a wasteful number, since it uses less digits than its factorization.

2653566 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11995.

The product of its digits is 32400, while the sum is 33.

The square root of 2653566 is about 1628.9769795795. The cubic root of 2653566 is about 138.4447946040. Note that the first 3 decimals are identical.

The spelling of 2653566 in words is "two million, six hundred fifty-three thousand, five hundred sixty-six".