55066020 has 24 divisors (see below), whose sum is σ = 154185024. Its totient is φ = 14684256.

The previous prime is 55066019. The next prime is 55066021. The reversal of 55066020 is 2066055.

It is an interprime number because it is at equal distance from previous prime (55066019) and next prime (55066021).

It is not an unprimeable number, because it can be changed into a prime (55066021) 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, 458824 + ... + 458943.

It is an arithmetic number, because the mean of its divisors is an integer number (6424376).

Almost surely, 2^55066020 is an apocalyptic number.

It is an amenable number.

55066020 is an abundant number, since it is smaller than the sum of its proper divisors (99119004).

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

55066020 is a wasteful number, since it uses less digits than its factorization.

55066020 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 917779 (or 917777 counting only the distinct ones).

The product of its (nonzero) digits is 1800, while the sum is 24.

The square root of 55066020 is about 7420.6482196638. The cubic root of 55066020 is about 380.4473494274.

The spelling of 55066020 in words is "fifty-five million, sixty-six thousand, twenty".