2564510434 has 4 divisors (see below), whose sum is σ = 3846765654. Its totient is φ = 1282255216.

The previous prime is 2564510393. The next prime is 2564510447. The reversal of 2564510434 is 4340154652.

2564510434 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in only one way, i.e., 2199891409 + 364619025 = 46903^2 + 19095^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 2564510434.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 641127607 + ... + 641127610.

Almost surely, 2^2564510434 is an apocalyptic number.

2564510434 is a deficient number, since it is larger than the sum of its proper divisors (1282255220).

2564510434 is a wasteful number, since it uses less digits than its factorization.

2564510434 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1282255219.

The product of its (nonzero) digits is 57600, while the sum is 34.

The square root of 2564510434 is about 50640.9955865799. The cubic root of 2564510434 is about 1368.7836957184.

The spelling of 2564510434 in words is "two billion, five hundred sixty-four million, five hundred ten thousand, four hundred thirty-four".