551542 has 8 divisors (see below), whose sum is σ = 836136. Its totient is φ = 272832.

The previous prime is 551539. The next prime is 551543. The reversal of 551542 is 245155.

551542 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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

It is a super-3 number, since 3×551542³ = 503334875931336264, which contains 333 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (551543) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1228 + ... + 1615.

It is an arithmetic number, because the mean of its divisors is an integer number (104517).

2⁵⁵¹⁵⁴² is an apocalyptic number.

551542 is a deficient number, since it is larger than the sum of its proper divisors (284594).

551542 is a wasteful number, since it uses less digits than its factorization.

551542 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2942.

The product of its digits is 1000, while the sum is 22.

The square root of 551542 is about 742.6587372407. The cubic root of 551542 is about 82.0086249107.

Adding to 551542 its reverse (245155), we get a palindrome (796697).

The spelling of 551542 in words is "five hundred fifty-one thousand, five hundred forty-two".