551659794 has 64 divisors (see below), whose sum is σ = 1349913600. Its totient is φ = 146778048.

The previous prime is 551659789. The next prime is 551659811. The reversal of 551659794 is 497956155.

It is a super-2 number, since 2×551659794² = 608657056632244872, which contains 22 as substring.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 41224 + ... + 52940.

It is an arithmetic number, because the mean of its divisors is an integer number (21092400).

Almost surely, 2^551659794 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 551659794, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (674956800).

551659794 is an abundant number, since it is smaller than the sum of its proper divisors (798253806).

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

551659794 is a wasteful number, since it uses less digits than its factorization.

551659794 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11807.

The product of its digits is 1701000, while the sum is 51.

The square root of 551659794 is about 23487.4390685745. The cubic root of 551659794 is about 820.1446274742.

The spelling of 551659794 in words is "five hundred fifty-one million, six hundred fifty-nine thousand, seven hundred ninety-four".