2520002345 has 16 divisors (see below), whose sum is σ = 3462417408. Its totient is φ = 1724794560.

The previous prime is 2520002339. The next prime is 2520002347. The reversal of 2520002345 is 5432000252.

It is not a de Polignac number, because 2520002345 - 2¹⁰ = 2520001321 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 2520002345.

It is not an unprimeable number, because it can be changed into a prime (2520002347) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 47609 + ... + 85478.

It is an arithmetic number, because the mean of its divisors is an integer number (216401088).

Almost surely, 2^2520002345 is an apocalyptic number.

It is an amenable number.

2520002345 is a deficient number, since it is larger than the sum of its proper divisors (942415063).

2520002345 is a wasteful number, since it uses less digits than its factorization.

2520002345 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 133640.

The product of its (nonzero) digits is 2400, while the sum is 23.

The square root of 2520002345 is about 50199.6249487982. The cubic root of 2520002345 is about 1360.8188452963.

Adding to 2520002345 its reverse (5432000252), we get a palindrome (7952002597).

The spelling of 2520002345 in words is "two billion, five hundred twenty million, two thousand, three hundred forty-five".