551706651 has 12 divisors (see below), whose sum is σ = 797417712. Its totient is φ = 367569936.

The previous prime is 551706637. The next prime is 551706671. The reversal of 551706651 is 156607155.

It is not a de Polignac number, because 551706651 - 2⁶ = 551706587 is a prime.

It is not an unprimeable number, because it can be changed into a prime (551706611) by changing a digit.

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 11 ways as a sum of consecutive naturals, for example, 3991 + ... + 33456.

It is an arithmetic number, because the mean of its divisors is an integer number (66451476).

Almost surely, 2^551706651 is an apocalyptic number.

551706651 is a deficient number, since it is larger than the sum of its proper divisors (245711061).

551706651 is a wasteful number, since it uses less digits than its factorization.

551706651 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 39090 (or 39087 counting only the distinct ones).

The product of its (nonzero) digits is 31500, while the sum is 36.

The square root of 551706651 is about 23488.4365380074. The cubic root of 551706651 is about 820.1678473579.

The spelling of 551706651 in words is "five hundred fifty-one million, seven hundred six thousand, six hundred fifty-one".