2545487017 has 4 divisors (see below), whose sum is σ = 2554174980. Its totient is φ = 2536799056.

The previous prime is 2545486969. The next prime is 2545487041. The reversal of 2545487017 is 7107845452.

2545487017 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 2 ways, for example, as 1041288361 + 1504198656 = 32269^2 + 38784^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-2545487017 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (2545487047) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 4343542 + ... + 4344127.

It is an arithmetic number, because the mean of its divisors is an integer number (638543745).

Almost surely, 2^2545487017 is an apocalyptic number.

It is an amenable number.

2545487017 is a deficient number, since it is larger than the sum of its proper divisors (8687963).

2545487017 is an equidigital number, since it uses as much as digits as its factorization.

2545487017 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8687962.

The product of its (nonzero) digits is 313600, while the sum is 43.

The square root of 2545487017 is about 50452.8197130745. The cubic root of 2545487017 is about 1365.3907680921.

The spelling of 2545487017 in words is "two billion, five hundred forty-five million, four hundred eighty-seven thousand, seventeen".