20752548 has 12 divisors (see below), whose sum is σ = 48422640. Its totient is φ = 6917512.

The previous prime is 20752507. The next prime is 20752549. The reversal of 20752548 is 84525702.

It is a tau number, because it is divible by the number of its divisors (12).

It is not an unprimeable number, because it can be changed into a prime (20752549) by changing a digit.

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 3 ways as a sum of consecutive naturals, for example, 864678 + ... + 864701.

It is an arithmetic number, because the mean of its divisors is an integer number (4035220).

Almost surely, 2^20752548 is an apocalyptic number.

It is an amenable number.

20752548 is an abundant number, since it is smaller than the sum of its proper divisors (27670092).

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

20752548 is a wasteful number, since it uses less digits than its factorization.

20752548 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1729386 (or 1729384 counting only the distinct ones).

The product of its (nonzero) digits is 22400, while the sum is 33.

The square root of 20752548 is about 4555.4964603213. The cubic root of 20752548 is about 274.8044803060.

The spelling of 20752548 in words is "twenty million, seven hundred fifty-two thousand, five hundred forty-eight".