551241132 has 72 divisors (see below), whose sum is σ = 1431683568. Its totient is φ = 164096640.

The previous prime is 551241109. The next prime is 551241139. The reversal of 551241132 is 231142155.

It is a happy number.

It is not an unprimeable number, because it can be changed into a prime (551241139) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 148078 + ... + 151754.

It is an arithmetic number, because the mean of its divisors is an integer number (19884494).

Almost surely, 2^551241132 is an apocalyptic number.

551241132 is a gapful number since it is divisible by the number (52) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 551241132, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (715841784).

551241132 is an abundant number, since it is smaller than the sum of its proper divisors (880442436).

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

551241132 is a wasteful number, since it uses less digits than its factorization.

551241132 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3759 (or 3726 counting only the distinct ones).

The product of its digits is 1200, while the sum is 24.

The square root of 551241132 is about 23478.5249110757. The cubic root of 551241132 is about 819.9371020564.

Adding to 551241132 its reverse (231142155), we get a palindrome (782383287).

The spelling of 551241132 in words is "five hundred fifty-one million, two hundred forty-one thousand, one hundred thirty-two".