2500307505 has 24 divisors (see below), whose sum is σ = 4343683968. Its totient is φ = 1330476576.

The previous prime is 2500307503. The next prime is 2500307519. The reversal of 2500307505 is 5057030052.

It is not a de Polignac number, because 2500307505 - 2¹ = 2500307503 is a prime.

It is not an unprimeable number, because it can be changed into a prime (2500307503) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 42777 + ... + 82646.

It is an arithmetic number, because the mean of its divisors is an integer number (180986832).

Almost surely, 2^2500307505 is an apocalyptic number.

It is an amenable number.

2500307505 is a deficient number, since it is larger than the sum of its proper divisors (1843376463).

2500307505 is a wasteful number, since it uses less digits than its factorization.

2500307505 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 125877 (or 125874 counting only the distinct ones).

The product of its (nonzero) digits is 5250, while the sum is 27.

The square root of 2500307505 is about 50003.0749554465. The cubic root of 2500307505 is about 1357.2644524820.

Adding to 2500307505 its reverse (5057030052), we get a palindrome (7557337557).

The spelling of 2500307505 in words is "two billion, five hundred million, three hundred seven thousand, five hundred five".