2545335656 has 8 divisors (see below), whose sum is σ = 4772504370. Its totient is φ = 1272667824.

The previous prime is 2545335623. The next prime is 2545335671. The reversal of 2545335656 is 6565335452.

It can be written as a sum of positive squares in only one way, i.e., 2493004900 + 52330756 = 49930^2 + 7234^2 .

It is a tau number, because it is divible by the number of its divisors (8).

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 159083471 + ... + 159083486.

Almost surely, 2^2545335656 is an apocalyptic number.

It is an amenable number.

2545335656 is a deficient number, since it is larger than the sum of its proper divisors (2227168714).

2545335656 is a wasteful number, since it uses less digits than its factorization.

2545335656 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 318166963 (or 318166959 counting only the distinct ones).

The product of its digits is 1620000, while the sum is 44.

The square root of 2545335656 is about 50451.3196655945. The cubic root of 2545335656 is about 1365.3637043767.

The spelling of 2545335656 in words is "two billion, five hundred forty-five million, three hundred thirty-five thousand, six hundred fifty-six".