2503665989 has 16 divisors (see below), whose sum is σ = 2941968384. Its totient is φ = 2106865200.

The previous prime is 2503665977. The next prime is 2503665991. The reversal of 2503665989 is 9895663052.

2503665989 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 2503665989 - 2¹⁶ = 2503600453 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 2503665989.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2503665959) 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, 151769 + ... + 167454.

It is an arithmetic number, because the mean of its divisors is an integer number (183873024).

Almost surely, 2^2503665989 is an apocalyptic number.

It is an amenable number.

2503665989 is a deficient number, since it is larger than the sum of its proper divisors (438302395).

2503665989 is a wasteful number, since it uses less digits than its factorization.

2503665989 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 319288.

The product of its (nonzero) digits is 3499200, while the sum is 53.

The square root of 2503665989 is about 50036.6464603694. The cubic root of 2503665989 is about 1357.8718859665.

The spelling of 2503665989 in words is "two billion, five hundred three million, six hundred sixty-five thousand, nine hundred eighty-nine".