2561045433 has 8 divisors (see below), whose sum is σ = 3415183200. Its totient is φ = 1707135648.

The previous prime is 2561045429. The next prime is 2561045441. The reversal of 2561045433 is 3345401652.

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

It is not a de Polignac number, because 2561045433 - 2² = 2561045429 is a prime.

It is a super-3 number, since 3×2561045433³ (a number of 29 digits) contains 333 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 2561045394 and 2561045403.

It is not an unprimeable number, because it can be changed into a prime (2561045483) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 28788 + ... + 77141.

It is an arithmetic number, because the mean of its divisors is an integer number (426897900).

Almost surely, 2^2561045433 is an apocalyptic number.

It is an amenable number.

2561045433 is a deficient number, since it is larger than the sum of its proper divisors (854137767).

2561045433 is a wasteful number, since it uses less digits than its factorization.

2561045433 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 113991.

The product of its (nonzero) digits is 43200, while the sum is 33.

The square root of 2561045433 is about 50606.7726001175. The cubic root of 2561045433 is about 1368.1669471325.

The spelling of 2561045433 in words is "two billion, five hundred sixty-one million, forty-five thousand, four hundred thirty-three".