2564355433 has 8 divisors (see below), whose sum is σ = 2647732736. Its totient is φ = 2481019200.

The previous prime is 2564355419. The next prime is 2564355481. The reversal of 2564355433 is 3345534652.

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

It is a cyclic number.

It is not a de Polignac number, because 2564355433 - 2⁵ = 2564355401 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (2564355733) 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, 163660 + ... + 178642.

It is an arithmetic number, because the mean of its divisors is an integer number (330966592).

Almost surely, 2^2564355433 is an apocalyptic number.

It is an amenable number.

2564355433 is a deficient number, since it is larger than the sum of its proper divisors (83377303).

2564355433 is a wasteful number, since it uses less digits than its factorization.

2564355433 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 20535.

The product of its digits is 648000, while the sum is 40.

The square root of 2564355433 is about 50639.4651729261. The cubic root of 2564355433 is about 1368.7561183800.

The spelling of 2564355433 in words is "two billion, five hundred sixty-four million, three hundred fifty-five thousand, four hundred thirty-three".