2553655 has 16 divisors (see below), whose sum is σ = 3495744. Its totient is φ = 1774080.

The previous prime is 2553647. The next prime is 2553659. The reversal of 2553655 is 5563552.

It is not a de Polignac number, because 2553655 - 2³ = 2553647 is a prime.

2553655 is a lucky number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2553659) 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, 51 + ... + 2260.

It is an arithmetic number, because the mean of its divisors is an integer number (218484).

2^2553655 is an apocalyptic number.

2553655 is a deficient number, since it is larger than the sum of its proper divisors (942089).

2553655 is a wasteful number, since it uses less digits than its factorization.

2553655 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2346.

The product of its digits is 22500, while the sum is 31.

The square root of 2553655 is about 1598.0159573671. The cubic root of 2553655 is about 136.6849635097.

The spelling of 2553655 in words is "two million, five hundred fifty-three thousand, six hundred fifty-five".