2545709515 has 8 divisors (see below), whose sum is σ = 3112490448. Its totient is φ = 1998141600.

The previous prime is 2545709513. The next prime is 2545709549. The reversal of 2545709515 is 5159075452.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 2545709515 - 2¹ = 2545709513 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (2545709513) 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 in 7 ways as a sum of consecutive naturals, for example, 4802961 + ... + 4803490.

It is an arithmetic number, because the mean of its divisors is an integer number (389061306).

Almost surely, 2^2545709515 is an apocalyptic number.

2545709515 is a deficient number, since it is larger than the sum of its proper divisors (566780933).

2545709515 is an equidigital number, since it uses as much as digits as its factorization.

2545709515 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9606509.

The product of its (nonzero) digits is 315000, while the sum is 43.

The square root of 2545709515 is about 50455.0246754473. The cubic root of 2545709515 is about 1365.4305493287.

The spelling of 2545709515 in words is "two billion, five hundred forty-five million, seven hundred nine thousand, five hundred fifteen".