55066847 has 4 divisors (see below), whose sum is σ = 60072936. Its totient is φ = 50060760.

The previous prime is 55066829. The next prime is 55066849. The reversal of 55066847 is 74866055.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 55066847 - 2⁶ = 55066783 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (55066849) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2503028 + ... + 2503049.

It is an arithmetic number, because the mean of its divisors is an integer number (15018234).

Almost surely, 2^55066847 is an apocalyptic number.

55066847 is a deficient number, since it is larger than the sum of its proper divisors (5006089).

55066847 is a wasteful number, since it uses less digits than its factorization.

55066847 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5006088.

The product of its (nonzero) digits is 201600, while the sum is 41.

The square root of 55066847 is about 7420.7039423494. The cubic root of 55066847 is about 380.4492539799.

The spelling of 55066847 in words is "fifty-five million, sixty-six thousand, eight hundred forty-seven".