2661552 has 80 divisors (see below), whose sum is σ = 7841760. Its totient is φ = 864000.

The previous prime is 2661541. The next prime is 2661553. The reversal of 2661552 is 2551662.

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

It is a nialpdrome in base 12.

It is not an unprimeable number, because it can be changed into a prime (2661553) 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, 26302 + ... + 26402.

It is an arithmetic number, because the mean of its divisors is an integer number (98022).

2^2661552 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 2661552, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (3920880).

2661552 is an abundant number, since it is smaller than the sum of its proper divisors (5180208).

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

2661552 is a wasteful number, since it uses less digits than its factorization.

2661552 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 179 (or 167 counting only the distinct ones).

The product of its digits is 3600, while the sum is 27.

The square root of 2661552 is about 1631.4263697758. The cubic root of 2661552 is about 138.5835403328.

The spelling of 2661552 in words is "two million, six hundred sixty-one thousand, five hundred fifty-two".