5545438 has 16 divisors (see below), whose sum is σ = 8981280. Its totient is φ = 2560096.

The previous prime is 5545433. The next prime is 5545439. The reversal of 5545438 is 8345455.

It is a super-2 number, since 2×5545438² = 61503765223688, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (5545433) 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, 745 + ... + 3412.

It is an arithmetic number, because the mean of its divisors is an integer number (561330).

Almost surely, 2^5545438 is an apocalyptic number.

5545438 is a gapful number since it is divisible by the number (58) formed by its first and last digit.

5545438 is a deficient number, since it is larger than the sum of its proper divisors (3435842).

5545438 is a wasteful number, since it uses less digits than its factorization.

5545438 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4211.

The product of its digits is 48000, while the sum is 34.

The square root of 5545438 is about 2354.8753682520. The cubic root of 5545438 is about 177.0021811258.

It can be divided in two parts, 554543 and 8, that multiplied together give a palindrome (4436344).

The spelling of 5545438 in words is "five million, five hundred forty-five thousand, four hundred thirty-eight".