2564325433 has 4 divisors (see below), whose sum is σ = 2564605440. Its totient is φ = 2564045428.

The previous prime is 2564325409. The next prime is 2564325457. The reversal of 2564325433 is 3345234652.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is an interprime number because it is at equal distance from previous prime (2564325409) and next prime (2564325457).

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-2564325433 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 2564325392 and 2564325401.

It is not an unprimeable number, because it can be changed into a prime (2564325403) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 125785 + ... + 144742.

It is an arithmetic number, because the mean of its divisors is an integer number (641151360).

Almost surely, 2^2564325433 is an apocalyptic number.

It is an amenable number.

2564325433 is a deficient number, since it is larger than the sum of its proper divisors (280007).

2564325433 is an equidigital number, since it uses as much as digits as its factorization.

2564325433 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 280006.

The product of its digits is 259200, while the sum is 37.

The square root of 2564325433 is about 50639.1689604006. The cubic root of 2564325433 is about 1368.7507807367.

It can be divided in two parts, 25643 and 25433, that added together give a square (51076 = 226²).

The spelling of 2564325433 in words is "two billion, five hundred sixty-four million, three hundred twenty-five thousand, four hundred thirty-three".