2545617601 has 2 divisors, whose sum is σ = 2545617602. Its totient is φ = 2545617600.

The previous prime is 2545617589. The next prime is 2545617629. The reversal of 2545617601 is 1067165452.

It is a happy number.

2545617601 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 2458176400 + 87441201 = 49580^2 + 9351^2 .

It is a cyclic number.

It is not a de Polignac number, because 2545617601 - 2⁹ = 2545617089 is a prime.

It is not a weakly prime, because it can be changed into another prime (2545617661) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1272808800 + 1272808801.

It is an arithmetic number, because the mean of its divisors is an integer number (1272808801).

Almost surely, 2^2545617601 is an apocalyptic number.

It is an amenable number.

2545617601 is a deficient number, since it is larger than the sum of its proper divisors (1).

2545617601 is an equidigital number, since it uses as much as digits as its factorization.

2545617601 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 50400, while the sum is 37.

The square root of 2545617601 is about 50454.1138164174. The cubic root of 2545617601 is about 1365.4141159672.

The spelling of 2545617601 in words is "two billion, five hundred forty-five million, six hundred seventeen thousand, six hundred one".