55066445 has 24 divisors (see below), whose sum is σ = 78670944. Its totient is φ = 36874656.

The previous prime is 55066441. The next prime is 55066457. The reversal of 55066445 is 54466055.

It is not a de Polignac number, because 55066445 - 2² = 55066441 is a prime.

It is a hoax number, since the sum of its digits (35) coincides with the sum of the digits of its distinct prime factors.

It is a Harshad number since it is a multiple of its sum of digits (35).

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (55066441) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 7922 + ... + 13148.

It is an arithmetic number, because the mean of its divisors is an integer number (3277956).

Almost surely, 2^55066445 is an apocalyptic number.

It is an amenable number.

55066445 is a deficient number, since it is larger than the sum of its proper divisors (23604499).

55066445 is a wasteful number, since it uses less digits than its factorization.

55066445 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5289 (or 5282 counting only the distinct ones).

The product of its (nonzero) digits is 72000, while the sum is 35.

The square root of 55066445 is about 7420.6768559209. The cubic root of 55066445 is about 380.4483281902.

The spelling of 55066445 in words is "fifty-five million, sixty-six thousand, four hundred forty-five".