55066149 has 10 divisors (see below), whose sum is σ = 82259430. Its totient is φ = 36710712.

The previous prime is 55066139. The next prime is 55066171. The reversal of 55066149 is 94166055.

55066149 is a `hidden beast` number, since 5 + 506 + 6 + 149 = 666.

It can be written as a sum of positive squares in only one way, i.e., 54863649 + 202500 = 7407^2 + 450^2 .

It is not a de Polignac number, because 55066149 - 2⁴ = 55066133 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (55066129) by changing a digit.

It is a polite number, since it can be written in 9 ways as a sum of consecutive naturals, for example, 339834 + ... + 339995.

It is an arithmetic number, because the mean of its divisors is an integer number (8225943).

Almost surely, 2^55066149 is an apocalyptic number.

It is an amenable number.

55066149 is a deficient number, since it is larger than the sum of its proper divisors (27193281).

55066149 is an equidigital number, since it uses as much as digits as its factorization.

55066149 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 679841 (or 679832 counting only the distinct ones).

The product of its (nonzero) digits is 32400, while the sum is 36.

The square root of 55066149 is about 7420.6569116218. The cubic root of 55066149 is about 380.4476465112.

The spelling of 55066149 in words is "fifty-five million, sixty-six thousand, one hundred forty-nine".