2553618 has 8 divisors (see below), whose sum is σ = 5107248. Its totient is φ = 851204.

The previous prime is 2553611. The next prime is 2553631. The reversal of 2553618 is 8163552.

It is a sphenic number, since it is the product of 3 distinct primes.

2553618 is an admirable number.

It is a d-powerful number, because it can be written as 2¹⁶ + 5² + 5⁸ + 3⁵ + 6² + 1 + 8⁷ .

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (2553611) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 212796 + ... + 212807.

It is an arithmetic number, because the mean of its divisors is an integer number (638406).

2^2553618 is an apocalyptic number.

2553618 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

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

2553618 is a wasteful number, since it uses less digits than its factorization.

2553618 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 425608.

The product of its digits is 7200, while the sum is 30.

The square root of 2553618 is about 1598.0043804696. The cubic root of 2553618 is about 136.6843033621.

The spelling of 2553618 in words is "two million, five hundred fifty-three thousand, six hundred eighteen".