2554639 has 8 divisors (see below), whose sum is σ = 2666160. Its totient is φ = 2444736.

The previous prime is 2554637. The next prime is 2554649. The reversal of 2554639 is 9364552.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 2554639 - 2¹ = 2554637 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 (2554637) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 3652 + ... + 4294.

It is an arithmetic number, because the mean of its divisors is an integer number (333270).

2^2554639 is an apocalyptic number.

2554639 is a gapful number since it is divisible by the number (29) formed by its first and last digit.

2554639 is a deficient number, since it is larger than the sum of its proper divisors (111521).

2554639 is a wasteful number, since it uses less digits than its factorization.

2554639 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 809.

The product of its digits is 32400, while the sum is 34.

The square root of 2554639 is about 1598.3238094954. The cubic root of 2554639 is about 136.7025175297.

The spelling of 2554639 in words is "two million, five hundred fifty-four thousand, six hundred thirty-nine".