20544552 has 48 divisors (see below), whose sum is σ = 63591840. Its totient is φ = 5869728.

The previous prime is 20544547. The next prime is 20544553. The reversal of 20544552 is 25544502.

20544552 is a `hidden beast` number, since 205 + 4 + 455 + 2 = 666.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20544553) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 19878 + ... + 20885.

It is an arithmetic number, because the mean of its divisors is an integer number (1324830).

Almost surely, 2^20544552 is an apocalyptic number.

It is an amenable number.

20544552 is an abundant number, since it is smaller than the sum of its proper divisors (43047288).

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

20544552 is a wasteful number, since it uses less digits than its factorization.

20544552 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 40782 (or 40775 counting only the distinct ones).

The product of its (nonzero) digits is 8000, while the sum is 27.

The square root of 20544552 is about 4532.6098442288. The cubic root of 20544552 is about 273.8833040636.

The spelling of 20544552 in words is "twenty million, five hundred forty-four thousand, five hundred fifty-two".