20066548 has 24 divisors (see below), whose sum is σ = 37142784. Its totient is φ = 9470400.

The previous prime is 20066539. The next prime is 20066561. The reversal of 20066548 is 84566002.

It is a Harshad number since it is a multiple of its sum of digits (31).

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 3111 + ... + 7057.

It is an arithmetic number, because the mean of its divisors is an integer number (1547616).

Almost surely, 2^20066548 is an apocalyptic number.

It is an amenable number.

20066548 is a deficient number, since it is larger than the sum of its proper divisors (17076236).

20066548 is a wasteful number, since it uses less digits than its factorization.

20066548 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4023 (or 4021 counting only the distinct ones).

The product of its (nonzero) digits is 11520, while the sum is 31.

The square root of 20066548 is about 4479.5700686561. The cubic root of 20066548 is about 271.7424934600.

The spelling of 20066548 in words is "twenty million, sixty-six thousand, five hundred forty-eight".