2561130706 has 8 divisors (see below), whose sum is σ = 3842106624. Its totient is φ = 1280428500.

The previous prime is 2561130623. The next prime is 2561130709. The reversal of 2561130706 is 6070311652.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not an unprimeable number, because it can be changed into a prime (2561130709) 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, 43170 + ... + 83581.

It is an arithmetic number, because the mean of its divisors is an integer number (480263328).

Almost surely, 2^2561130706 is an apocalyptic number.

2561130706 is a deficient number, since it is larger than the sum of its proper divisors (1280975918).

2561130706 is a wasteful number, since it uses less digits than its factorization.

2561130706 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 136856.

The product of its (nonzero) digits is 7560, while the sum is 31.

The square root of 2561130706 is about 50607.6150989157. The cubic root of 2561130706 is about 1368.1821318696.

The spelling of 2561130706 in words is "two billion, five hundred sixty-one million, one hundred thirty thousand, seven hundred six".