551820064 has 12 divisors (see below), whose sum is σ = 1086395814. Its totient is φ = 275910016.

The previous prime is 551820053. The next prime is 551820083. The reversal of 551820064 is 460028155.

It can be written as a sum of positive squares in only one way, i.e., 469155600 + 82664464 = 21660^2 + 9092^2 .

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 8622157 + ... + 8622220.

Almost surely, 2^551820064 is an apocalyptic number.

It is an amenable number.

551820064 is a deficient number, since it is larger than the sum of its proper divisors (534575750).

551820064 is a wasteful number, since it uses less digits than its factorization.

551820064 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 17244387 (or 17244379 counting only the distinct ones).

The product of its (nonzero) digits is 9600, while the sum is 31.

The square root of 551820064 is about 23490.8506444530. The cubic root of 551820064 is about 820.2240434800.

The spelling of 551820064 in words is "five hundred fifty-one million, eight hundred twenty thousand, sixty-four".