551812350 has 48 divisors (see below), whose sum is σ = 1449001008. Its totient is φ = 138493440.

The previous prime is 551812291. The next prime is 551812351. The reversal of 551812350 is 53218155.

It is a super-2 number, since 2×551812350² = 608993739225045000, which contains 22 as substring.

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

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (551812351) by changing a digit.

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 23 ways as a sum of consecutive naturals, for example, 105649 + ... + 110748.

It is an arithmetic number, because the mean of its divisors is an integer number (30187521).

Almost surely, 2^551812350 is an apocalyptic number.

551812350 is a gapful number since it is divisible by the number (50) formed by its first and last digit.

551812350 is an abundant number, since it is smaller than the sum of its proper divisors (897188658).

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

551812350 is a wasteful number, since it uses less digits than its factorization.

551812350 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 216429 (or 216424 counting only the distinct ones).

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

The square root of 551812350 is about 23490.6864522942. The cubic root of 551812350 is about 820.2202214384.

The spelling of 551812350 in words is "five hundred fifty-one million, eight hundred twelve thousand, three hundred fifty".