55863630612 has 36 divisors (see below), whose sum is σ = 146440877856. Its totient is φ = 18621209880.

The previous prime is 55863630611. The next prime is 55863630617. The reversal of 55863630612 is 21603636855.

55863630612 is a `hidden beast` number, since 5 + 5 + 8 + 6 + 3 + 630 + 6 + 1 + 2 = 666.

It is a tau number, because it is divible by the number of its divisors (36).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (55863630611) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 28735464 + ... + 28737407.

Almost surely, 2^55863630612 is an apocalyptic number.

It is an amenable number.

55863630612 is an abundant number, since it is smaller than the sum of its proper divisors (90577247244).

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

55863630612 is a wasteful number, since it uses less digits than its factorization.

55863630612 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 57472890 (or 57472876 counting only the distinct ones).

The product of its (nonzero) digits is 777600, while the sum is 45.

The spelling of 55863630612 in words is "fifty-five billion, eight hundred sixty-three million, six hundred thirty thousand, six hundred twelve".