2561335102 has 8 divisors (see below), whose sum is σ = 3843865800. Its totient is φ = 1280046504.

The previous prime is 2561335087. The next prime is 2561335123. The reversal of 2561335102 is 2015331652.

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 pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 305352 + ... + 313627.

It is an arithmetic number, because the mean of its divisors is an integer number (480483225).

Almost surely, 2^2561335102 is an apocalyptic number.

2561335102 is a deficient number, since it is larger than the sum of its proper divisors (1282530698).

2561335102 is a wasteful number, since it uses less digits than its factorization.

2561335102 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 621050.

The product of its (nonzero) digits is 5400, while the sum is 28.

The square root of 2561335102 is about 50609.6344780319. The cubic root of 2561335102 is about 1368.2185277104.

Adding to 2561335102 its reverse (2015331652), we get a palindrome (4576666754).

The spelling of 2561335102 in words is "two billion, five hundred sixty-one million, three hundred thirty-five thousand, one hundred two".