2505011305 has 8 divisors (see below), whose sum is σ = 3136709952. Its totient is φ = 1916878128.

The previous prime is 2505011287. The next prime is 2505011309. The reversal of 2505011305 is 5031105052.

2505011305 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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

It is a cyclic number.

It is not a de Polignac number, because 2505011305 - 2⁵ = 2505011273 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (2505011309) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 10891239 + ... + 10891468.

It is an arithmetic number, because the mean of its divisors is an integer number (392088744).

Almost surely, 2^2505011305 is an apocalyptic number.

It is an amenable number.

2505011305 is a deficient number, since it is larger than the sum of its proper divisors (631698647).

2505011305 is a wasteful number, since it uses less digits than its factorization.

2505011305 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 21782735.

The product of its (nonzero) digits is 750, while the sum is 22.

The square root of 2505011305 is about 50050.0879619607. The cubic root of 2505011305 is about 1358.1150546749.

Adding to 2505011305 its reverse (5031105052), we get a palindrome (7536116357).

The spelling of 2505011305 in words is "two billion, five hundred five million, eleven thousand, three hundred five".