55012870 has 32 divisors (see below), whose sum is σ = 108410400. Its totient is φ = 19933440.

The previous prime is 55012861. The next prime is 55012883. The reversal of 55012870 is 7821055.

55012870 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 15 ways as a sum of consecutive naturals, for example, 37674 + ... + 39106.

It is an arithmetic number, because the mean of its divisors is an integer number (3387825).

Almost surely, 2^55012870 is an apocalyptic number.

55012870 is a deficient number, since it is larger than the sum of its proper divisors (53397530).

55012870 is a wasteful number, since it uses less digits than its factorization.

55012870 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1800.

The product of its (nonzero) digits is 2800, while the sum is 28.

The square root of 55012870 is about 7417.0661315644. The cubic root of 55012870 is about 380.3249067919.

The spelling of 55012870 in words is "fifty-five million, twelve thousand, eight hundred seventy".