2655580242 has 64 divisors (see below), whose sum is σ = 6173660160. Its totient is φ = 745816896.

The previous prime is 2655580237. The next prime is 2655580259. The reversal of 2655580242 is 2420855562.

It is a happy number.

It is a self number, because there is not a number n which added to its sum of digits gives 2655580242.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 2078908 + ... + 2080184.

It is an arithmetic number, because the mean of its divisors is an integer number (96463440).

Almost surely, 2^2655580242 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 2655580242, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (3086830080).

2655580242 is an abundant number, since it is smaller than the sum of its proper divisors (3518079918).

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

2655580242 is a wasteful number, since it uses less digits than its factorization.

2655580242 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2095.

The product of its (nonzero) digits is 192000, while the sum is 39.

The square root of 2655580242 is about 51532.3223035795. The cubic root of 2655580242 is about 1384.7981550179.

The spelling of 2655580242 in words is "two billion, six hundred fifty-five million, five hundred eighty thousand, two hundred forty-two".