551512830 has 64 divisors (see below), whose sum is σ = 1446253056. Its totient is φ = 133488000.

The previous prime is 551512813. The next prime is 551512873. The reversal of 551512830 is 38215155.

It is a Harshad number since it is a multiple of its sum of digits (30).

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 339420 + ... + 341040.

It is an arithmetic number, because the mean of its divisors is an integer number (22597704).

Almost surely, 2^551512830 is an apocalyptic number.

551512830 is an abundant number, since it is smaller than the sum of its proper divisors (894740226).

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

551512830 is a wasteful number, since it uses less digits than its factorization.

551512830 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2673.

The product of its (nonzero) digits is 6000, while the sum is 30.

The square root of 551512830 is about 23484.3102943220. The cubic root of 551512830 is about 820.0717912556.

Adding to 551512830 its reverse (38215155), we get a palindrome (589727985).

The spelling of 551512830 in words is "five hundred fifty-one million, five hundred twelve thousand, eight hundred thirty".