2561343535 has 8 divisors (see below), whose sum is σ = 3172761216. Its totient is φ = 1982975520.

The previous prime is 2561343529. The next prime is 2561343557. The reversal of 2561343535 is 5353431652.

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

It is not a de Polignac number, because 2561343535 - 2¹¹ = 2561341487 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 2561343494 and 2561343503.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 8262244 + ... + 8262553.

It is an arithmetic number, because the mean of its divisors is an integer number (396595152).

Almost surely, 2^2561343535 is an apocalyptic number.

2561343535 is a deficient number, since it is larger than the sum of its proper divisors (611417681).

2561343535 is a wasteful number, since it uses less digits than its factorization.

2561343535 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 16524833.

The product of its digits is 162000, while the sum is 37.

The square root of 2561343535 is about 50609.7177921395. The cubic root of 2561343535 is about 1368.2200292937.

The spelling of 2561343535 in words is "two billion, five hundred sixty-one million, three hundred forty-three thousand, five hundred thirty-five".