2553660 has 48 divisors (see below), whose sum is σ = 7946400. Its totient is φ = 680832.

The previous prime is 2553659. The next prime is 2553671. The reversal of 2553660 is 663552.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1825 + ... + 2904.

It is an arithmetic number, because the mean of its divisors is an integer number (165550).

2^2553660 is an apocalyptic number.

2553660 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

2553660 is an abundant number, since it is smaller than the sum of its proper divisors (5392740).

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

2553660 is a wasteful number, since it uses less digits than its factorization.

2553660 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4747 (or 4739 counting only the distinct ones).

The product of its (nonzero) digits is 5400, while the sum is 27.

The square root of 2553660 is about 1598.0175218063. The cubic root of 2553660 is about 136.6850527184.

The spelling of 2553660 in words is "two million, five hundred fifty-three thousand, six hundred sixty".