55229412 has 24 divisors (see below), whose sum is σ = 147278656. Its totient is φ = 15779808.

The previous prime is 55229407. The next prime is 55229423. The reversal of 55229412 is 21492255.

It is a self number, because there is not a number n which added to its sum of digits gives 55229412.

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, 328663 + ... + 328830.

Almost surely, 2^55229412 is an apocalyptic number.

It is an amenable number.

55229412 is an abundant number, since it is smaller than the sum of its proper divisors (92049244).

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

55229412 is a wasteful number, since it uses less digits than its factorization.

55229412 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 657507 (or 657505 counting only the distinct ones).

The product of its digits is 7200, while the sum is 30.

The square root of 55229412 is about 7431.6493458720. The cubic root of 55229412 is about 380.8232659001.

The spelling of 55229412 in words is "fifty-five million, two hundred twenty-nine thousand, four hundred twelve".