2545155601 has 2 divisors, whose sum is σ = 2545155602. Its totient is φ = 2545155600.

The previous prime is 2545155581. The next prime is 2545155611. The reversal of 2545155601 is 1065515452.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 1652341201 + 892814400 = 40649^2 + 29880^2 .

It is a cyclic number.

It is not a de Polignac number, because 2545155601 - 2²¹ = 2543058449 is a prime.

It is not a weakly prime, because it can be changed into another prime (2545155611) by changing a digit.

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, 1272577800 + 1272577801.

It is an arithmetic number, because the mean of its divisors is an integer number (1272577801).

Almost surely, 2^2545155601 is an apocalyptic number.

It is an amenable number.

2545155601 is a deficient number, since it is larger than the sum of its proper divisors (1).

2545155601 is an equidigital number, since it uses as much as digits as its factorization.

2545155601 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 30000, while the sum is 34.

The square root of 2545155601 is about 50449.5351911195. The cubic root of 2545155601 is about 1365.3315087069.

The spelling of 2545155601 in words is "two billion, five hundred forty-five million, one hundred fifty-five thousand, six hundred one".