1655552 has 36 divisors (see below), whose sum is σ = 3433920. Its totient is φ = 795648.

The previous prime is 1655551. The next prime is 1655557. The reversal of 1655552 is 2555561.

It is a Harshad number since it is a multiple of its sum of digits (29).

It is not an unprimeable number, because it can be changed into a prime (1655551) 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, 7313 + ... + 7535.

2^1655552 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 1655552, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1716960).

1655552 is an abundant number, since it is smaller than the sum of its proper divisors (1778368).

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

1655552 is an equidigital number, since it uses as much as digits as its factorization.

1655552 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 268 (or 254 counting only the distinct ones).

The product of its digits is 7500, while the sum is 29.

The square root of 1655552 is about 1286.6825560331. The cubic root of 1655552 is about 118.2989642081.

Subtracting 1655552 from its reverse (2555561), we obtain a palindrome (900009).

The spelling of 1655552 in words is "one million, six hundred fifty-five thousand, five hundred fifty-two".