55047030 has 16 divisors (see below), whose sum is σ = 132112944. Its totient is φ = 14679200.

The previous prime is 55047023. The next prime is 55047049. The reversal of 55047030 is 3074055.

It is a congruent number.

It is an unprimeable number.

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 7 ways as a sum of consecutive naturals, for example, 917421 + ... + 917480.

It is an arithmetic number, because the mean of its divisors is an integer number (8257059).

Almost surely, 2^55047030 is an apocalyptic number.

55047030 is an abundant number, since it is smaller than the sum of its proper divisors (77065914).

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

55047030 is a wasteful number, since it uses less digits than its factorization.

55047030 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1834911.

The product of its (nonzero) digits is 2100, while the sum is 24.

The square root of 55047030 is about 7419.3685715160. The cubic root of 55047030 is about 380.4036108640.

The spelling of 55047030 in words is "fifty-five million, forty-seven thousand, thirty".