2519989 has 4 divisors (see below), whose sum is σ = 2652640. Its totient is φ = 2387340.

The previous prime is 2519981. The next prime is 2520017. The reversal of 2519989 is 9899152.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 2519989 - 2³ = 2519981 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2519981) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 66297 + ... + 66334.

It is an arithmetic number, because the mean of its divisors is an integer number (663160).

2^2519989 is an apocalyptic number.

It is an amenable number.

2519989 is a deficient number, since it is larger than the sum of its proper divisors (132651).

2519989 is a wasteful number, since it uses less digits than its factorization.

2519989 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 132650.

The product of its digits is 58320, while the sum is 43.

The square root of 2519989 is about 1587.4473219606. The cubic root of 2519989 is about 136.0816443161.

The spelling of 2519989 in words is "two million, five hundred nineteen thousand, nine hundred eighty-nine".