2503746985 has 4 divisors (see below), whose sum is σ = 3004496388. Its totient is φ = 2002997584.

The previous prime is 2503746953. The next prime is 2503746991. The reversal of 2503746985 is 5896473052.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 323604121 + 2180142864 = 17989^2 + 46692^2 .

It is a cyclic number.

It is not a de Polignac number, because 2503746985 - 2⁵ = 2503746953 is a prime.

It is a Smith number, since the sum of its digits (49) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 250374694 + ... + 250374703.

It is an arithmetic number, because the mean of its divisors is an integer number (751124097).

Almost surely, 2^2503746985 is an apocalyptic number.

It is an amenable number.

2503746985 is a deficient number, since it is larger than the sum of its proper divisors (500749403).

2503746985 is an equidigital number, since it uses as much as digits as its factorization.

2503746985 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 500749402.

The product of its (nonzero) digits is 1814400, while the sum is 49.

The square root of 2503746985 is about 50037.4558206150. The cubic root of 2503746985 is about 1357.8865286286.

The spelling of 2503746985 in words is "two billion, five hundred three million, seven hundred forty-six thousand, nine hundred eighty-five".