2505605615 has 8 divisors (see below), whose sum is σ = 3016990368. Its totient is φ = 1997642080.

The previous prime is 2505605591. The next prime is 2505605629. The reversal of 2505605615 is 5165065052.

2505605615 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 not a de Polignac number, because 2505605615 - 2⁸ = 2505605359 is a prime.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 853691 + ... + 856620.

It is an arithmetic number, because the mean of its divisors is an integer number (377123796).

Almost surely, 2^2505605615 is an apocalyptic number.

2505605615 is a deficient number, since it is larger than the sum of its proper divisors (511384753).

2505605615 is a wasteful number, since it uses less digits than its factorization.

2505605615 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1710609.

The product of its (nonzero) digits is 45000, while the sum is 35.

The square root of 2505605615 is about 50056.0247622601. The cubic root of 2505605615 is about 1358.2224497372. Note that the first 3 decimals are identical.

The spelling of 2505605615 in words is "two billion, five hundred five million, six hundred five thousand, six hundred fifteen".