2553989 has 4 divisors (see below), whose sum is σ = 2665056. Its totient is φ = 2442924.

The previous prime is 2553959. The next prime is 2554003. The reversal of 2553989 is 9893552.

2553989 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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 2553989 - 2¹² = 2549893 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2553949) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 55499 + ... + 55544.

It is an arithmetic number, because the mean of its divisors is an integer number (666264).

2^2553989 is an apocalyptic number.

It is an amenable number.

2553989 is a deficient number, since it is larger than the sum of its proper divisors (111067).

2553989 is a wasteful number, since it uses less digits than its factorization.

2553989 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 111066.

The product of its digits is 97200, while the sum is 41.

The square root of 2553989 is about 1598.1204585387. The cubic root of 2553989 is about 136.6909223919.

The spelling of 2553989 in words is "two million, five hundred fifty-three thousand, nine hundred eighty-nine".