55403292 has 24 divisors (see below), whose sum is σ = 147742336. Its totient is φ = 15829488.

The previous prime is 55403287. The next prime is 55403321. The reversal of 55403292 is 29230455.

55403292 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 329698 + ... + 329865.

Almost surely, 2^55403292 is an apocalyptic number.

It is an amenable number.

55403292 is an abundant number, since it is smaller than the sum of its proper divisors (92339044).

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

55403292 is a wasteful number, since it uses less digits than its factorization.

55403292 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 659577 (or 659575 counting only the distinct ones).

The product of its (nonzero) digits is 10800, while the sum is 30.

The square root of 55403292 is about 7443.3387669782. The cubic root of 55403292 is about 381.2224987060. Note that the first 3 decimals are identical.

The spelling of 55403292 in words is "fifty-five million, four hundred three thousand, two hundred ninety-two".