20755546 has 16 divisors (see below), whose sum is σ = 35640576. Its totient is φ = 8880336.

The previous prime is 20755519. The next prime is 20755547. The reversal of 20755546 is 64555702.

It is not an unprimeable number, because it can be changed into a prime (20755547) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 13215 + ... + 14701.

It is an arithmetic number, because the mean of its divisors is an integer number (2227536).

Almost surely, 2^20755546 is an apocalyptic number.

20755546 is a deficient number, since it is larger than the sum of its proper divisors (14885030).

20755546 is a wasteful number, since it uses less digits than its factorization.

20755546 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2493.

The product of its (nonzero) digits is 42000, while the sum is 34.

The square root of 20755546 is about 4555.8255014871. The cubic root of 20755546 is about 274.8177128042.

The spelling of 20755546 in words is "twenty million, seven hundred fifty-five thousand, five hundred forty-six".