2561303126 has 8 divisors (see below), whose sum is σ = 3863181504. Its totient is φ = 1273575960.

The previous prime is 2561303093. The next prime is 2561303141. The reversal of 2561303126 is 6213031652.

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

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3537350 + ... + 3538073.

It is an arithmetic number, because the mean of its divisors is an integer number (482897688).

Almost surely, 2^2561303126 is an apocalyptic number.

2561303126 is a deficient number, since it is larger than the sum of its proper divisors (1301878378).

2561303126 is a wasteful number, since it uses less digits than its factorization.

2561303126 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7075606.

The product of its (nonzero) digits is 6480, while the sum is 29.

The square root of 2561303126 is about 50609.3185688169. The cubic root of 2561303126 is about 1368.2128340212.

Adding to 2561303126 its reverse (6213031652), we get a palindrome (8774334778).

The spelling of 2561303126 in words is "two billion, five hundred sixty-one million, three hundred three thousand, one hundred twenty-six".