55012866 has 16 divisors (see below), whose sum is σ = 115816800. Its totient is φ = 17372448.

The previous prime is 55012861. The next prime is 55012883. The reversal of 55012866 is 66821055.

It is not an unprimeable number, because it can be changed into a prime (55012861) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 241171 + ... + 241398.

It is an arithmetic number, because the mean of its divisors is an integer number (7238550).

Almost surely, 2^55012866 is an apocalyptic number.

55012866 is an abundant number, since it is smaller than the sum of its proper divisors (60803934).

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

55012866 is a wasteful number, since it uses less digits than its factorization.

55012866 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 482593.

The product of its (nonzero) digits is 14400, while the sum is 33.

The square root of 55012866 is about 7417.0658619160. The cubic root of 55012866 is about 380.3248975741.

The spelling of 55012866 in words is "fifty-five million, twelve thousand, eight hundred sixty-six".