551966770 has 16 divisors (see below), whose sum is σ = 1008370368. Its totient is φ = 217491120.

The previous prime is 551966747. The next prime is 551966783. The reversal of 551966770 is 77669155.

It is a happy number.

It is a self number, because there is not a number n which added to its sum of digits gives 551966770.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 411246 + ... + 412585.

It is an arithmetic number, because the mean of its divisors is an integer number (63023148).

Almost surely, 2^551966770 is an apocalyptic number.

551966770 is a deficient number, since it is larger than the sum of its proper divisors (456403598).

551966770 is a wasteful number, since it uses less digits than its factorization.

551966770 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 823905.

The product of its (nonzero) digits is 396900, while the sum is 46.

The square root of 551966770 is about 23493.9730569353. The cubic root of 551966770 is about 820.2967248570.

The spelling of 551966770 in words is "five hundred fifty-one million, nine hundred sixty-six thousand, seven hundred seventy".