55066473 has 72 divisors (see below), whose sum is σ = 103920960. Its totient is φ = 28343520.

The previous prime is 55066463. The next prime is 55066477. The reversal of 55066473 is 37466055.

55066473 is a `hidden beast` number, since 5 + 5 + 0 + 6 + 647 + 3 = 666.

It is not a de Polignac number, because 55066473 - 2⁴ = 55066457 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (55066477) by changing a digit.

It is a polite number, since it can be written in 71 ways as a sum of consecutive naturals, for example, 505143 + ... + 505251.

Almost surely, 2^55066473 is an apocalyptic number.

It is an amenable number.

55066473 is a deficient number, since it is larger than the sum of its proper divisors (48854487).

55066473 is an equidigital number, since it uses as much as digits as its factorization.

55066473 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 151 (or 130 counting only the distinct ones).

The product of its (nonzero) digits is 75600, while the sum is 36.

The square root of 55066473 is about 7420.6787425410. The cubic root of 55066473 is about 380.4483926732.

The spelling of 55066473 in words is "fifty-five million, sixty-six thousand, four hundred seventy-three".