551979608 has 8 divisors (see below), whose sum is σ = 1034961780. Its totient is φ = 275989800.

The previous prime is 551979607. The next prime is 551979611. The reversal of 551979608 is 806979155.

It is a happy number.

It is a tau number, because it is divible by the number of its divisors (8).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (551979601) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 34498718 + ... + 34498733.

Almost surely, 2^551979608 is an apocalyptic number.

It is an amenable number.

551979608 is a deficient number, since it is larger than the sum of its proper divisors (482982172).

551979608 is a wasteful number, since it uses less digits than its factorization.

551979608 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 68997457 (or 68997453 counting only the distinct ones).

The product of its (nonzero) digits is 680400, while the sum is 50.

The square root of 551979608 is about 23494.2462743541. The cubic root of 551979608 is about 820.3030844716.

The spelling of 551979608 in words is "five hundred fifty-one million, nine hundred seventy-nine thousand, six hundred eight".