55878430212 has 72 divisors (see below), whose sum is σ = 156996403200. Its totient is φ = 16613363520.

The previous prime is 55878430189. The next prime is 55878430219. The reversal of 55878430212 is 21203487855.

55878430212 is a `hidden beast` number, since 5 + 587 + 8 + 43 + 0 + 21 + 2 = 666.

It is not an unprimeable number, because it can be changed into a prime (55878430219) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 1310212 + ... + 1352187.

It is an arithmetic number, because the mean of its divisors is an integer number (2180505600).

Almost surely, 2^55878430212 is an apocalyptic number.

It is an amenable number.

55878430212 is an abundant number, since it is smaller than the sum of its proper divisors (101117972988).

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

55878430212 is a wasteful number, since it uses less digits than its factorization.

55878430212 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2662473 (or 2662468 counting only the distinct ones).

The product of its (nonzero) digits is 537600, while the sum is 45.

The spelling of 55878430212 in words is "fifty-five billion, eight hundred seventy-eight million, four hundred thirty thousand, two hundred twelve".