2564352554 has 4 divisors (see below), whose sum is σ = 3846528834. Its totient is φ = 1282176276.

The previous prime is 2564352509. The next prime is 2564352559. The reversal of 2564352554 is 4552534652.

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., 2561878225 + 2474329 = 50615^2 + 1573^2 .

It is not an unprimeable number, because it can be changed into a prime (2564352559) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 641088137 + ... + 641088140.

Almost surely, 2^2564352554 is an apocalyptic number.

2564352554 is a deficient number, since it is larger than the sum of its proper divisors (1282176280).

2564352554 is a wasteful number, since it uses less digits than its factorization.

2564352554 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1282176279.

The product of its digits is 720000, while the sum is 41.

The square root of 2564352554 is about 50639.4367464726. The cubic root of 2564352554 is about 1368.7556061459.

The spelling of 2564352554 in words is "two billion, five hundred sixty-four million, three hundred fifty-two thousand, five hundred fifty-four".