2561050044 has 36 divisors (see below), whose sum is σ = 7398589744. Its totient is φ = 731728512.

The previous prime is 2561050039. The next prime is 2561050057. The reversal of 2561050044 is 4400501652.

2561050044 is a `hidden beast` number, since 2 + 5 + 610 + 5 + 0 + 0 + 44 = 666.

It is a tau number, because it is divible by the number of its divisors (36).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 5081197 + ... + 5081700.

Almost surely, 2^2561050044 is an apocalyptic number.

It is an amenable number.

2561050044 is an abundant number, since it is smaller than the sum of its proper divisors (4837539700).

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

2561050044 is a wasteful number, since it uses less digits than its factorization.

2561050044 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10162914 (or 10162909 counting only the distinct ones).

The product of its (nonzero) digits is 4800, while the sum is 27.

The square root of 2561050044 is about 50606.8181572404. The cubic root of 2561050044 is about 1368.1677682313.

Adding to 2561050044 its reverse (4400501652), we get a palindrome (6961551696).

The spelling of 2561050044 in words is "two billion, five hundred sixty-one million, fifty thousand, forty-four".