2554638 has 16 divisors (see below), whose sum is σ = 5218560. Its totient is φ = 833336.

The previous prime is 2554637. The next prime is 2554649. The reversal of 2554638 is 8364552.

It is a super-2 number, since 2×2554638² = 13052350622088, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 2554599 and 2554608.

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

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 4248 + ... + 4811.

It is an arithmetic number, because the mean of its divisors is an integer number (326160).

2^2554638 is an apocalyptic number.

2554638 is an abundant number, since it is smaller than the sum of its proper divisors (2663922).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

2554638 is a wasteful number, since it uses less digits than its factorization.

2554638 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9111.

The product of its digits is 28800, while the sum is 33.

The square root of 2554638 is about 1598.3234966677. The cubic root of 2554638 is about 136.7024996925.

The spelling of 2554638 in words is "two million, five hundred fifty-four thousand, six hundred thirty-eight".