551042000 has 40 divisors (see below), whose sum is σ = 1332424392. Its totient is φ = 220416000.

The previous prime is 551041993. The next prime is 551042003. The reversal of 551042000 is 240155.

It can be written as a sum of positive squares in 4 ways, for example, as 1420864 + 549621136 = 1192^2 + 23444^2 .

It is a tau number, because it is divible by the number of its divisors (40).

It is a self number, because there is not a number n which added to its sum of digits gives 551042000.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (551042003) 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, 135761 + ... + 139760.

Almost surely, 2^551042000 is an apocalyptic number.

551042000 is a gapful number since it is divisible by the number (50) formed by its first and last digit.

It is an amenable number.

551042000 is an abundant number, since it is smaller than the sum of its proper divisors (781382392).

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

551042000 is a wasteful number, since it uses less digits than its factorization.

551042000 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 275544 (or 275528 counting only the distinct ones).

The product of its (nonzero) digits is 200, while the sum is 17.

The square root of 551042000 is about 23474.2838016413. The cubic root of 551042000 is about 819.8383579858.

Adding to 551042000 its reverse (240155), we get a palindrome (551282155).

The spelling of 551042000 in words is "five hundred fifty-one million, forty-two thousand".