20475048 has 32 divisors (see below), whose sum is σ = 55841760. Its totient is φ = 6204480.

The previous prime is 20475047. The next prime is 20475071. The reversal of 20475048 is 84057402.

It is not an unprimeable number, because it can be changed into a prime (20475041) 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 7 ways as a sum of consecutive naturals, for example, 38515 + ... + 39042.

It is an arithmetic number, because the mean of its divisors is an integer number (1745055).

Almost surely, 2^20475048 is an apocalyptic number.

It is an amenable number.

20475048 is an abundant number, since it is smaller than the sum of its proper divisors (35366712).

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

20475048 is a wasteful number, since it uses less digits than its factorization.

20475048 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 77577 (or 77573 counting only the distinct ones).

The product of its (nonzero) digits is 8960, while the sum is 30.

The square root of 20475048 is about 4524.9362426448. The cubic root of 20475048 is about 273.5740981259.

The spelling of 20475048 in words is "twenty million, four hundred seventy-five thousand, forty-eight".